Disclaimer: I do not own any of the material appearing in this story. The OC's belong to their respective owners.
Peach paced around the cell, looking a bit worried. "Oh… if only there was something I can do…" She said as she kept pacing. It was then that she heard heavy footsteps approaching as she turned around and saw everyone running toward her. She let out a relieved happy smile. "Mario! Luigi! RWBY! Everyone! …BOWSER?!"
"Yo!" Bowser greeted.
"They told us what happened, so we decided to help them!" Kamek said.
"Oh… I see." Peach said as they surrounded her.
"Hang on, we'll get you of there!" Nora said, as she and Luigi activated their Thunder Hands and then blasted the barrier with a bolt of lightning, but it did nothing. "Huh… that didn't work?"
"Let me try something!" Bowser said as he pulled back his fist and then punched the barrier, but nothing happened. "Huh, that usually works…" He said as Ruby slashed the barrier but it did nothing. Yang threw a Hadoken at it, Aerith launched a Firaga attack while Dante slashed at it, but nothing worked.
"This barrier is impenetrable." Peach said. "Nothing will work."
"Is that so? Well, she's never seen this type of magic before!" Kamek said, aiming his wand at the barrier. "Reflectra Jilania Morphia!" He chanted, firing magic at the barrier but it bounced off and disappeared. "Incredible… it withstood my "Disable Barrier" spell. This technology is something else…" He mused.
"Hewwo!" Baby Mario waved to her.
"Oh! Are these your younger selves?" Peach asked as she knelt down. "Hello!" She waved as Baby Mario let out a giggle while Baby Luigi shyly looked away with a blush and Baby Daisy waved back with a giggle. "It's amazing to see some of your younger sel-" She spotted Togekiss. "Oh, hello there! Who are you?"
"Kiss! Kiss kiss!" Togekiss wrapped her wings around the Mario Bros. "Togekiss Kiss!"
Peach gasped. "Parfait?! Is that you?!"
"Kiss!"
"Oh my goodness! I hardly recognized you! Where did you find her?"
"I found her somewhere near Mushroom Hills." Marnie said. "Neo and I nursed her back to health and then I went around Toad Town asking if they knew who the Togekiss belonged to. I then went to your castle because I had a feelin' someone knew this Togekiss… but I walked in the middle of Bowser's invasion and… next thing I knew, Parfait and I teleported inside the mothership near Thwomp Volcano."
"And Mario and Luigi reunited with her, oh that's wonderful!" Peach smiled and then Sienna walked forward. "Oh, and who are you?"
"I am Sienna Kahn, the leader of the White Fang."
"The Wh-White Fang?!" Peach paled at the thought.
"Do not worry, I came to your castle in peace because I wanted to know how fair you were. Unfortunately… you got caught up in the middle of an alien invasion." Sienna said. "I just wanted to chat."
Peach seemed to relax a little. "Well… I suppose we can do that after I'm free."
"Couldn't agree more."
"Though… there is something that's troubling me. How did you all get in here?"
"The Cobalt Star." Mario explained. "We collected five out of six shards and it was enough to break through the doors.
Peach let out a gasp. "No… no no no no… if that happens then…"
"Then what happens?" Ruby asked.
"I have a feeling I might know…" Sonic said.
"Something-"
BOOM!
"Wah!" Luigi yelped. "What's going on?!"
BGM: No Time To Think! (Kingdom Hearts)
Just outside, the Mothership was blasting apart the Shroob statue. "Shoot it!" Princess Shroob ordered as she was on the top of the UFO. "Make it cave in on top of them!"
"M'lady… are you sure this is safe?" A Shroob asked.
"We are perfectly safe! Nothing will happen to us. Our UFO is invincible!"
Inside…
"They're gonna try to cave us in!" Samus exclaimed.
"We'll put a stop to them!" Ruby said.
"You stay here, we'll go shoot it out of the sky!" Yang said as they took off running.
"I mean… it's not like I have a choice!" Peach called out to them as they climbed to the top of the statue and walked outside where they saw the Mothership.
"Hey guys! The head of this statue is a spaceship!" Nora said as she looked inside.
End BGM
"Yeah no, I'm not messing with that." Young Samus said, pulling something out and pushing a button as her own ship came flying over. She then looked over to Samus with a smirk. "Doesn't that make you nostalgic?"
"Classy." Samus said as they climbed aboard while the Mario Bros pulled out six Cape Feathers and gave them to their baby selves and the Daisys.
"Alright! Let's go kick some butt!" Daisy said.
"Yeah!" Baby Daisy said as they flew up while the White Wings and Minervas got on their Pegasi and Wyverns, with Luminary, Erik, Veronica, Jade, Aerith, Sienna, Ironwood, and Min Min hopped on the Pegasi and Wyverns while General Guy hopped on Kamek's broom. Baby Bowser called upon two Koopa Clown cars.
"Good thing I have a spare!" He grinned as Bowser as Tyranitar hopped in one as the Bowsers flew up in the air where Marnie hopped up on the Togekiss and flew up to join the Bros and Daisys.
"You know, we haven't called them out in a long time." Ruby said.
"Ooooh! Good idea!" Yang grinned as RWBY and JNPR pulled out their scrolls.
"What are you-" Roman wondered as suddenly, their Stars appeared in front of them. "What the?!"
"Palutena made these for us!" Ruby smiled.
"Viridi made ours! …Or was it Arlon?" Nora wondered. "Eh, it doesn't matter!" She chuckled as they hopped up on their stars.
"There's enough room for two!" Ruby said.
"Well, in that case…" Roman hopped on Ruby's, Neo on Yang's, Neptune on Weiss's, Sun on Blake's, Ghira on Jaune's, Kali on Pyrrha's, Leone on Nora's and Winter on Ren's.
"I feel like the odd one out here." Scoop Swoop said as he was flying by himself as Dante activated his Devil Trigger and flew up with him.
"Nah, you got me."
Young Samus let out an annoyed groan. "What's wrong?" Samus asked.
"Do they have to stand on top of my ship?" She asked as Sonic and Classic Sonic were happily standing on top of her ship.
"It's their thing."
"Typical…" Young Samus sighed.
"HAHAHAHAHA! You fools think you can take on my mothership?!" Princess Shroob cackled. "I'd love to see you try!"
"Let's go!" Ruby yelled.
"YEAH!" Everyone else yelled.
BGM: Vs. Orcan & Skullian (Sonic Colors)
Unidentified Fungus of Orbit - The Mothership
The Mothershp fired lasers at the group, but they quickly avoided the lasers as they quickly flew directly at the mothership as several UFOs came flying out and attacked the group, but Samus' ship shot them down as RWBY and JNPR fired shots from their Stars at the UFO. The Mothership retaliated by firing back at them but they were quick enough to fly around the UFO as the Koopa Clown Cars fired cannonballs at it.
"Hahahaha! You can't do anything!" Princess Shroob cockily said as one cannonball nearly hit her, making her flinch. "Yeeek!"
"I think we should go in." A Shroob said, and then a cannonball hit him. "YAAAAGH!" He yelled as he fell to his death off of the mothership.
"Have some of this!" Dante said, flying over and slashing at the mothership but nothing had happened, and then more UFOs came flying out as Sonic looked at his Classic self with a nod as they jumped off of the ship and Homing Attacked the UFOs, kicking them directly into the mothership where they exploded and caused the mothership to take damage, which was enough to tear a hole in the ship while the Sonics had bounced back onto the ship.
The Mario Bros and Daisys went inside the ship and found the engine keeping the ship afloat. All of them nodded as Luigi and Mario unleashed their Thunder Hand and Fire Brand attacks on it, while Daisy brought out a Crystal Flower and punched the ground to create a path of crystals to impale the engine while the Baby Bros and Baby Daisy ran over and hammered and threw a boomerang at it for insult to injury. They then flew out as it was smoking right as Min Min had used her Megawatt ARM to hit a UFO and punch a hole in the mothership, where Marnie flew in with Parfait as she hopped off and slashed at the generator while Parfait used Metronome and used Icicle Crash on top of it, then Marnie hopped back on Parfait and flew out.
Warning! The Mothership's engine is highly unstable! Any more damage will make it stall and crash!
"You gotta be kidding me!" Princess Shroob complained as Young Samus' ship came flying by as Sonic and Classic Sonic took a good look at her as Classic Sonic wrapped his arms around Sonic as he spread his arms out.
"Look at us, we're at top of the world!" Sonic smirked.
"What the hell are they doing?" Minerva asked.
"Well, looks like someone watched that Cruise Ship movie…" Mario chuckled while Princess Shroob had an angry tic mark on her forehead.
"You… YOU…!"
"Heheh, sucker!" Sonic taunted as the ship flew off while high fiving his classic self as Princess Shroob pointed her finger at the ship.
"BLAST THOSE HEDGEHOGS OUT OF THE SKY!" She ordered, unaware of some UFOs were being tossed into the mothership from RWBY and JNPR's Stars, as some of them hit the engine on contact, which caused the engine to explode.
DANGER! The engine has been destroyed! Crash course set for Shroob Castle!
"…Unbelievable!" Princess Shroob complained as the ship fell toward Shroob Castle, exploding on contact as half of the statue fell toward the ground.
End BGM
The others flew toward the ground, RWBY and JNPR dismissing their Stars after landing while Young Samus' ship docked as they rushed toward the rubble where they saw that Peach was nowhere to be found.
"Where is she?!" Mario exclaimed in horror.
"AIYEEEEEEEEE!"
"Oh no!" Luigi said as they took off running as they soon found Princess Shroob at the entrance of her castle, throwing Peach into the Time Hole where she gave everyone a glare with a snarl, and then she hopped into the Time hole.
"Quick, after her!" Winter exclaimed as they ran toward the Time Hole.
In the present…
Peach was launched out of the Time Hole and landed on her back. "Oooow…" She groaned as she stood up… but was suddenly grabbed by the throat from Princess Shroob and had her dangle over the top of the castle.
"You're useless." Princess Shroob snarled, looking over the Kingdom and seeing everyone banding together to save Toad Town. "Rrrgh… I can still make this work!" She said and tightened her grip. "If I get rid of you, then their morale will take a hit! Any last words, princess?"
"Yeah, I got one!" A gruff voice said as Princess Shroob turned around only to get socked in the face from Bowser as she was launched out of the castle walls and then Bowser grabbed a hold of Peach's arm as she was falling. "Ya know, you could've used your umbrella!"
"In my room."
"…Pokemon?"
"Running about the courtyard."
"How about your other weapons?"
"In my room."
Bowser rolled his eyes. "Go get 'em then and meet us outside of the castle!"
"Right!" Peach nodded as Bowser pulled her up as she took off while he turned to the others.
"Well don't just stand there, move it! We got a princess to take out!"
"Yeah!"
With Princess Shroob…
"Uuungh…" Princess Shroob got up, groaning as she shook it off as she took a closer look at the carnage while lightning flashed in the darkened sky. "No… no… this cannot be happening!"
"It is happening!" Mario said as she turned around and faced the others. "It's over!"
"No… it's not over…" She said as she pressed a button as her throne appeared out of thin air as she sat down on it. "UNTIL I SAY IT'S OVER!" She declared as everyone got in their battle stances. "I'LL DESTROY ALL OF YOU!"
BGM: Princess Shroob Battle (Mario and Luigi: Partners in Time)
Disgruntled Alien Princess - Princess Shroob
Princess Shroob conjured up a force field around her throne as she then sprouted mechanical legs as she went to stab Ruby and Yang, but they jumped back as Kamek fired magic at the barrier which only seemed to weaken it by just a bit. Princess Shroob cackled as her throne pulled out two ray guns and fired at the Mario Bros, but they jumped away. "Anyone got any rope?" Nora asked.
"I'll go see if I can find some!" Sonic said as he took off running as the Minervas and White Wings flew over and stabbed the shield, but Princess Shroob pushed a button to release a shockwave that knocked them flying away as Aerith aimed her staff at Princess Shroob and fired a Ray of Judgement at the shield, as it weakened it only by a tiny bit as Ness and Paula both used a PK Fire while Ness also used a PK Rockin'.
Princess Shroob cackled as the throne walked forward and towered over Bowser as she fired shockwaves from below as he jumped up and unleashed an uppercut to knock the throne back a bit but still unleashed a shockwave that sent Bowser crashing to the ground, but he got back up with a snarl and breathed fire where she fired a laser to counter the fire, making a small explosion as Classic Sonic jumped through the smoke and Homing Attacked the shield but bounced off of it.
"Here we go!" Nora said as she and Luigi both hit the throne with the Thunder Hand as electricity hit the barrier as it seemed to weaken it a lot but still stood strong. Princess Shroob let out a cackle as she walked toward the group when suddenly a blue blur zipped around the throne and suddenly the legs were tied up with curtains and bedsheets. Sonic let out a chuckle and did a little tap with his shoe as the throne fell to the ground, disabling the barrier and making the throne explode as Princess Shroob launched off of it and landed near the group.
"You're welcome!" Sonic gave them a thumbs up as Peach joined them shortly after.
"Am I too late?" Peach asked.
"Nah, we're just getting started!" Bowser smirked.
End BGM
"Urgh… you… I'm not done YET!" Princess Shroob yelled… when she suddenly started to gain glowing green eyes.
"Calasmos got a hold of her!" Luminary said.
"Then let's do it in style!" Ruby said.
"Right!" Pyrrha nodded.
"RAAAAAAAAAH!"
BGM: Shrouding Dark Cloud (Kingdom Hearts)
Princess Shroob cast Oomph on herself, powering herself up as she quickly teleported near Veronica and Jade, quickly blasting them with bolts of energy that knocked them down as she then delivered an uppercut on Luminary but he snapped back and quickly slashed at her repeatedly and then fired a point blank Kaboom to her face to knock her back. Princess Shroob floated up and then rained down a bolt of energy at them but Min Min readied herself and did a flip kick to knock it back and slammed into her, knocking her toward the ground.
"Man, is there anything that those legs can't reflect back?" Yang chuckled as she and Leone jumped forward and punched Princess Shroob, but she blocked the attacks with her claws, but Bowser jumped over and Bowser Bombed her and then used a Whirling Fortress to send her back. Princess Shroob retaliated as fire conjured up in her hands and she unleashed Kafrizzle on the ground to make a powerful fire wall, but suddenly the fire wall was frozen solid much to the confusion of almost everyone… and then suddenly Princess Shroob let out a pained cry as she was knocked to the side as Esdeath approached her from the other side.
"Esdeath?!" Ironwood said in shock.
"Hello James. I saw what was going on from Toad Town. Let's take out the trash, shall we?"
"Right!" Ironwood nodded as Esdeath conjured up an ice axe as she lunged forward and swung her axe at Princess Shroob, as she grabbed the hilt of the axe with a snarl. Esdeath smirked wickedly and then knee'd Princess Shroob in the gut and then did a graceful flip kick that knocked her up in the air where Kamek flew over and launched ice magic at her to send her crashing to the ground. Princess Shroob got back up and fired bolts of lightning at the group but Weiss and Winter made a reflective ice barrier to reflect it back.
Princess Shroob then teleported behind the group and slammed her hands on the ground as fire pillars shot up from the ground and sent Weiss, Ironwood, Sienna, Erik and Mario up in the air while Neo ran ahead and stabbed Princess Shroob multiple times with her umbrella, but she was able to block these easily where Luigi ran over and hammered Princess Shroob on the head from the left to send her back as Marnie ran over and slashed at Princess Shroob and jumped back.
"You're weak!" Princess Shroob said, casting Blunt on Bowser and Luminary as Bowser punched her in the face, but found that she was able to not be launched by the attack. She then backhanded the two away.
"She used Blunt on us. It weakens our power for a short amount of time!"
"Now you tell me!" Bowser growled as Kaiju unleashed Hyper Beam on Princess Shroob from behind as she turned around and fired bolts of lightning at it when she was suddenly hit by Jaune's Rejuvenator and he let out a few swings while Pyrrha charged up an attack as she then jumped up and threw down a massive fireball attack that knocked Princess Shroob away as Ruby used her semblance and then slashed at Princess Shroob a few times while Weiss slashed at Princess Shroob soon after, where Ruby noticed that she wasn't as graceful with her swings, but chose to keep it to herself until later.
"Sunshine, Psybeam!" Peach ordered as her Espeon unleashed a Psybeam on her as Princess Shroob teleported out of the way and appeared behind Peach, but then Daisy came running in and punched her in the face to send her away. Peach nodded at Daisy as Peach brought out a golf club and ran over to Princess Shroob where she whacked her on the head with it as Princess Shroob then teleported away and went to charge up a bolt of lightning, but then Min Min wrapped her ARMs around her and then pulled her close before unleashing a flurry of kicks and sent her away with a roundhouse kick to where Mario ran over and hammered her up in the air as he jumped up and hammered her to the ground where both Samus' charged up their shots and fired at her.
Princess Shroob got back up an quickly cast bolts of lightning… when she felt something impale her from behind as Dante inserted his sword through her abdomen as Esdeath ran over and impaled her from the front with an icy spear that she conjured up… and to add insult to injury, Ironwood shot her in the head.
End BGM
"And that's checkmate." Esdeath said as they pulled away as Princess Shroob fell to the ground in defeat.
"Guys… we may have defeated her, but the battle is not over yet." Peach said solemnly.
"What are you talking about? We won!" Bowser said.
"Yes… but…" Peach began she pulled out the final shard of the Cobalt Star. "I hold the final shard of the Cobalt Star… and there's a reason why it was destroyed." She heard twinkling as the Cobalt Star flew over, but it flew over Princess Shroob's body. It looked like it was… shaking? "I destroyed it for a good reason… you see-"
"Oh blah blah blah, let's destroy these things once and for all!" Baby Bowser said, grabbing a hold of the final piece and jumped over to the Cobalt Star, where he started to insert it.
"BOWSER, NO!" Peach yelled as he inserted it in, when it started to glow violently and started shooting down bolts of lightning.
"Wah! What's happening?!" Baby Bowser exclaimed.
"YOUR HIGHNESS, LOOK OUT!" General Guy and Kamek both lunged directly at Baby Bowser, pushing him out of the way… while they took the bolts of lightning head on.
"Urgh… No!" Baby Bowser exclaimed, seeing the two quickly turning into mushrooms.
"Nnngh… Lord Bowser… it's been an honor…" Kamek whispered.
"Lord Bowser… it's been an honor serving you…" General Guy said as they both turned into mushrooms.
"NOOO!" Bowser yelled in horror while everyone else stood there in shock while a loud thunderclap shook the Mushroom Kingdom.
"There is a reason why you did that!" Sonic said to Peach. "There's two of them, aren't there?"
"That's correct! The elder one resides in that Cobalt Star and now that it's back in one piece…"
"We… we brought her back…" Yang whispered, her eyes widening in horror. "Oh no…"
The Cobalt Star shined brightly before Elder Princess Shroob landed on the ground with a loud thud… but she didn't face the group. She was looking at her younger sister. "My sister… my dearest sweet sister…" Elder Princess Shroob said, cradling her in her arms.
BGM: Organization XIII (Kingdom Hearts II)
"Sis… I… I feel…" Princess Shroob whispered, reaching out to her sister's cheek, but her arm fell limp.
"Sis? Sis! Open your eyes! SIS!" Elder Princess Shroob yelled, gently nudging her as tears rolled down her cheeks as they dropped on her youngest sister's face. "Please! No!" She begged but Princess Shroob's whole body slowly went limp… before disappearing in an explosion. Elder Princess Shroob teared up and then let out a loud wail that echoed throughout the kingdom. Everyone else stood there watching Elder Princess Shroob grieve for her sister… as if a wave of guilt suddenly struck all of them. It started to lightly rain throughout the kingdom.
"What have you done…" Elder Princess Shroob said through her tears. "WHAT HAVE YOU DONE?!" She roared and turned around to face the group.
Yang clenched her fists. "Hey, she was the one who attacked first! She was responsible for kidnapping Peach in the first place!"
"I DO NOT CARE!" Elder Princess Shroob yelled. "You do not understand our visit in the first place! Our planet was dying, so we were desperate to find a planet that would be suitable for us… and then we found the perfect one. The Mushroom Kingdom!"
"So what, you thought it was a good idea to invade by destroying EVERYTHING?!" Peach yelled. "We could have handled it peacefully, but instead you attacked us!"
"WE WERE DESPERATE! Excuse us for being a bit forceful! While I was in that infernal prison, I've watched countless of our men slaughtered by the likes of you! Did you even think to ask why we were doing this? No, you decided to crush them, take hundreds of lives and blood has been spilled by your filthy hands, by your infernal weapons! You call yourselves heroes, but you are bringing the Shroob race to extinction! It is all your faults! You didn't even thinktwice when you slaughtered them. You slaughtered them all! Men! Women! Children! INNOCENTS! You went out of your way to destroy them all… and you did so mercilessly. I could do nothing while you slaughtered everyone! I couldn't help but mourn for our fallen kin!"
"You call yourselves heroes… but in reality, you're nothing but true monsters! And then you went out of your way to murder my dearest sweet sister! I will avenge them… see how YOU like it to be slaughtered!"
Everyone readied themselves, but they could tell deep down… that Elder Princess Shroob might have had a point. "You brought us to extinction… I hope you're happy!" She snarled. "YOU WILL PAY FOR THE BLOOD THAT YOU HAVE SPILLED!"
End BGM
BGM: The Deep End (Kingdom Hearts)
Vengeful Oldest Sister - Elder Princess Shroob
Elder Princess Shroob lunged directly at the group, jumping over and making a shockwave that knocked them all back. Ruby got up and rushed at Elder Princess Shroob and slashed at her with her scythe, but Elder Princess Shroob backhanded her as Weiss and Winter ran over and fired icebergs at Elder Princess Shroob, but she deflected them as she grabbed both of their weapons and tossed them to the the side as she grabbed them and slammed them into each other, then she tossed them to the side. She then charged up an electric bolt and then swung it down on the ground to make an electrical shockwave that hit everyone.
"Heal!" Aerith said, using Curaga on the heroes as Dante ran over and slashed at Elder Princess Shroob where Bowser lunged at Elder Princess Shroob and punched her in the gut to send her back a foot.
"You killed my top men! You will pay for that!" Bowser roared.
"And you will pay for what you did to my kin!" Elder Princess Shroob shot back and then backhanded Bowser as she fired bolts of lightning at the group but Nora took the hits as she smirked and then fired back at Elder Princess Shroob tenfold. Elder Princess Shroob responded by summoning a meteor and threw it up in the air as she jumped up and punched it toward the ground, but the Mario Bros stepped up front and then hammered the meteor back into Elder Princess Shroob, hitting her back and slamming her into the ground.
Elder Princess Shroob brushed it off as she charged directly at the group as Ghira charged at her as both of them slammed into each other and tried to push the other back, where Elder Princess Shroob looked to gain the upper hand and then used an uppercut to knock Ghira back. She then looked over to Kali as she then punched her in the gut and then knocked her up in the air where she felt bullets hit her as she turned around and saw Neptune and Ironwood shoot her as she lunged directly at them and fired plasma shots that knocked them down.
An icy wave hit Elder Princess Shroob as she turned around and saw Esdeath as she roared and lunged at her as Esdeath fired a blizzard to keep her at bay. "There we go." She said, ready to snap her fingers when suddenly Elder Princess Shroob burst out of the ice in a rage. "What?!" Esdeath exclaimed in shock as Elder Princess Shroob grabbed her by the throat and then slammed her into the ground where Weiss and Winter both ran toward her and slashed her in the back, but Elder Princess Shroob swung her arm to knock them both to the ground
End BGM
"This is getting annoying… you are all still able to move." Elder Princess Shroob said and then smirked. "I think it's time we kick it up a notch!" She declared as her tiara glowed brightly as she started to transform… and what she had transformed into had shocked all of them.
BGM: Final Battle (Mario and Luigi: Partners in Time)
Elder Princess Shroob sprouted four arms as tentacles, as her feet turned into multiple tentacles… and she had gotten herself bigger. She looked completely hideous to boot. "YOU WILL NOT WIN!"
"How… how are we gonna win against THAT?!" Ruby said, feeling the grip on her scythe loosening.
"We have to try!" Mario said as Elder Princess Shroob aimed her tentacles at the group and started stabbing them where they had tried to fight them off but were grabbed by the tentacles and were thrown into the ground like ragdolls. Dante and Jaune swung their weapons down at the tentacles to sever them off… but more tentacles took their place as they went to wrap around the two and slammed them into the ground. She then fired a bolt of energy from her mouth and shot out at the Samus', sending them flying.
Jade ran over to Elder Princess Shroob from behind and swung her spear with a Crushed Ice attack with Veronica unleashed a Kaboomle with Luminary jumping over with Gigaslash to try and cut her down as Erik slashed her with his knives… but then tentacles sprout out from underneath her and grabbed them from the back and tossed them around and slammed them into the ground while the Sonics charged up a Spin Dash as they lunged directly into her head, but she swatted them away into Blake and Pyrrha, knocking them to the ground while Elder Princess Shroob then wrapped her arms around Roman and Neo as Marnie and Ruby tried to help them but were both slapped away as they were slammed into the ground and then did the same with the Mario Bros and Daisy.
"DIIIIIIIIIIE!" Elder Princess Shroob leaped up into the air and charged up a powerful bolt of energy and then threw it to the ground as they tried to get away when the bolt of energy slammed into the ground, making a powerful shockwave that sent everyone flying as there was a gigantic crater standing in the middle of the fields. "HAHAHAHA! Do you realize who you are messing with?!" She cackled when lightning flashed in the sky, where there was a loud thunderclap that echoed throughout the land… but it sounded very different.
"Was… was that… a sonic boom or… something?" Weiss winced.
"I… I am not sure…" Ruby said as everyone struggled to get up while Elder Princess Shroob landed on the ground.
"You are defeated. Now comes the slaughter! AHAHAHAHAHAHA!" Elder Princess Shroob laughed when she charged up another attack. "SAY GOODBYE!" She yelled… when suddenly a massive laser hit her in the back, disabling her move.
End BGM
"ARGH! Who DARES?!" She roared and turned around, seeing the clouds part to reveal an airship… but it wasn't just any airship.
"Is that… is that what I think it is?" Peach asked.
"Look!" Nora pointed to something in the distance that was coming in hot.
"POYOOOOOOOOOOOOO!"
BGM: The Legendary Air Ride Machine (Super Smash Bros Brawl/Wii U/3DS/Ultimate)
It was Kirby… and he was on the Dragoon. Kirby was on a collision course for Elder Princess Shroob as he slammed into her. "AAAARGH!" She grunted as Kirby flew up in the air and landed on the ground after dismounting the Dragoon. It was then that Meta Knight came flying over, as did the other two Meta Knights as he, Dark Meta Knight and Galacta Knight slashed at the massive Shroob. Then a Gordo slammed right on her face as Dedede landed with Bandana Dee… and then suddenly, Marx teleported in front of her, while holding Magolor and Taranza.
"Surprise!" Marx said, firing a laser while Magolor swung his Ultra Sword down and Taranza threw a dark ball of energy at her and joined the others, then Adeleine flew in with Ribbon and shot her while a fire breath attack from Dyna Blade hit her as the Animal Friends, the Allies and Gooey hopped off of her. Then the Three Mage Sisters flew over to with Hyness as Francisca swung her axe down, Flamberge swung her sword, and Zan skewered her with her lance while Hyness threw heart needles at her. Elder Princess Shroob was then attacked by Drillbits from Susie as she landed on the ground, then Daroach teleported in and swung his Triple Star Rod at her, hitting her a few times.
It was then that Jade Gadd and Xena came flying in with their Shadow Stars, Iris, Nyx and Umber came flying with their Jet Stars with Ultra Necrozma right behind him, Coco and Fox came flying in on Rocket Stars, Velvet on her Turbo, Yatsuhashi and Hendrik riding in with their Rex Wheelies, Serena and Sylvando came flying in with their Winged Stars and Rab came in with his Formula Star. Then Elder Princess Shroob got blasted by a laser and Yin Yang Orbs as Reimu and Marisa landed on the ground near them, then Amelia landed on the ground with Golurk.
"More pests!" Elder Princess Shroob growled.
"Who… who in the world are the rest of them?" Blake asked.
"I have no idea…" Ruby said as she saw Galacta Knight and her eyes widened, flashing back to her dream. "No…!"
"You guys sit back and heal up… we'll take care of this!" Nyx said as they hopped off of their Stars.
End BGM
BGM: 02 Battle (Super Smash Bros Brawl/Wii U/Ultimate)
Jade Gadd aimed her Poltergust at Elder Princess Shroob and charged up a Beam Attack before firing at her she swatted away the beam attack as Iris flew up and dive bombed Elder Princess Shroob, axe kicking her on the crown and then jumped back before firing feathers at her where Meta Knight and Dark Meta Knight slashed at Elder Princess Shroob where she blocked their attacks easily but then Dark Meta Knight snapped his fingers as mirrors appeared out of thin air and then impaled her from both sides as Galacta Knight ripped open a rift as a dark laser came firing out but Elder Princess Shroob fired a laser of her own, colliding into the dark laser.
Susie flew over with Francisca as Susie delivered a one two punch while Francisca swung her ice axe down, which was enough to interrupt Elder Princess Shroob's laser attack as Galacta Knight's laser engulfed her. Rick ran toward Elder Princess Shroob and curled up into a ball, engulfing himself in flames and hit her head on, but was swatted away from a tentacle as Coo flew over and dropped Kine who immediately froze himself solid and hit her on the head and then Coo picked him up right after. Chu Chu flew over and covered Elder Princess Shroob's eyes as she let out a roar as Pitch pecked her on the head and Nago scratched her up, then Chu Chu latched off.
"Ribbon! Give these to the others!" Adeleine said, giving her a lot of painted Maxim Tomatoes.
"Right!" Ribbon nodded and flew off while Adeleine painted an Ice Dragon as it ran over and breathed ice on her where Magolor tossed out Gem Apples while Xena covered her ears when the Gem Apples exploded, then she breathed fire at Elder Princess Shroob before engulfing herself in fire and lunging directly at her, slamming into her and then jumped back as she launched a massive fireball while Nyx ran over and quickly shot her crossbows at her, hitting her with rocks while also shooting Rocky out of the crossbow and hitting her directly in the face. Elder Princess Shroob aimed two tentacles at the two and went to stab them, but Velvet and Bugzzy grabbed a hold of them as they threw the tentacles back and stabbed herself with it.
"Necrozma, Prismatic Laser!" Umber ordered while quickly stabbing Elder Princess Shroob a few times with his Mirror Staff before jumping back and conjured up a mirror as a plasma shot hit the mirror and hit Elder Princess Shroob before getting hit by Ultra Necrozma's Prismatic Laser, then Yatsuhashi jumped over and slashed at Elder Princess Shroob while stabbing her with his beetle horn with the help of Beetley, then Fox and Spinni appeared in thin air and threw kunai and shuriken before the Elder Princess got herself pelted by plasma bolts from Coco's minigun and Doc's lasers.
Serena conjured up a water spear and threw it at Elder Princess Shroob where Zan made sure to electrify it and hit her dead center while Flamberge slashed at Elder Princess Shroob while Hyness summoned pillars of fire and engulfed her. Elder Princess Shroob swung her tentacles at the two but they avoided the attacks as Marx teleported in and let Gooey give her a tongue lashing then Marx threw cutters at her before dropping an ice bomb on her head where Taranza clapped his hands and called upon Sectonia to rain down lightning on her before she disappeared where Rab unleashed a fiery Zammle attack as Hendrik swung his fiery sword down with a Unbridled Blade attack.
"Let's use this for a while~!" Sylvando said, pulling out a hammer as he, Dedede and Storo went over and hammered her tentacles while Sylvando used a Hammer Flip attack to hit her in the gut as Bandana Dee ran over and skewered her with his spear, then Dedede used his Jet Hammer to smack her in the face as then Amelia flew over on Golurk as it used Dynamic Punch and then flew back where Dyna Blade roasted her with a fire breath attack and was hit with Daroach's Triple Star… and then Elder Princess Shroob found herself surrounded by magic charms.
"Here we go!" Reimu said. "FANTASY SEAL!" She yelled, making sure Xena was covering her ears as Fantasy Seal exploded on her as Elder Princess Shroob roared in pain as Kirby and Marisa aimed directly at Elder Princess Shroob.
"You ready, little bud?" Marisa asked.
"Poyo!"
"Then let's let 'er rip! MASTER SPARK!"
"MASTAH SPAWK!"
The two Master Sparks slammed directly into Elder Princess Shroob, which was enough for it to have her topple over on her back.
End BGM
"Yeah, we got her!" Jade Gadd cheered.
"Heheheh… HAHAHAHAHAHA! YOU FOOLS!" Elder Princess Shroob cackled. "THAT DIDN'T EVEN HURT!" She yelled, suddenly her eyes turned green.
"She's turning Malicious!" Serena exclaimed.
BGM: Endless Battle (Dragon Quest XI S: Echoes of an Elusive Age)
"FOOOOOOOLS!" She roared as she crossed her arms as she started charging up an attack. "RAAAAAAAAAAAAH!" She roared as she unleashed Magic Burst which covered the entire crater as everyone was launched back and yelling as they fell to the ground with a thud.
"Nnngh… all of those attacks… and that didn't do anything?!" Coco grunted.
"Alright… I think it's time we finished this." Sonic said as he rose from the ground. "It's a good thing I went to Mobius while we were preparing for the final battle. Didn't think I needed to use these, but we have no other choice." He said. "Hey! Queenie!"
End BGM
Elder Princess Shroob turned to Sonic. "The hedgehog continues to speak?"
"You claim that we have blood on our hands, but that doesn't excuse you for what you did back at Toadwood Forest!" Sonic said. "Yeah, I've seen the damage and it ain't pretty! You think you can knock us around playing the victim when in reality, you're the one who made a mess of things! You wanted to leave your planet, I get that! But there was no need for violence and taking over the Mushroom Kingdom by force! You ever heard of negotiating because I'm pretty sure you haven't!"
"Quit your babbling and die like what you did to our kin!"
"No… we won't." Sonic said with a smirk. "Because if you decide to slaughter us after what we did to you, that would make you no different than all of us!" He said as Elder Princess Shroob went to stab at Sonic but he jumped back. "Too slow!" He said and then pulled something out… or make that seven things.
"Are those… Emeralds?" Sienna wondered.
"They're not just any Emeralds… they're the Chaos Emeralds!" Sonic said and then chuckled as the seven Chaos Emeralds circled around the heroes, where they started glowing brightly as everyone started to lift up from the ground.
"What's going on?!" Blake asked.
"I think the Chaos Emerald… things are helping us!" Roman said as everyone felt their strength returning, even after Ribbon gave them a boost with the Maxim Tomatoes.
"I feel my aura returning to me!" Ruby exclaimed.
"Suddenly, I feel as if I've had this power before…" Mario mused. "As if we were helping Sonic and Shadow fight a robot that looks exactly like Sonic…"
"RAAAAAAH! I AM THE KING OF AWESOME POWERED UP!" Bowser boasted as Sonic and Classic Sonic went from blue to yellow while everyone else just had a light aura around them.
"Now then… you guys rest and heal up. We'll handle things from here!" Sonic said as everyone else readied themselves with smirks on their faces. "Now let's show 'er a thing or two!"
"YEAH!"
BGM: What I'm Made Of (Sonic Heroes)
Sonic and Classic Sonic rushed directly at Elder Princess Shroob and slammed into her, pushing her back as Sonic directly flew over on top of her head and saw that her tiara was still glowing. He smirked and then lunged directly at her tiara, quickly axe kicking it to shatter its power. "That would explain why you were a battle sponge." He said as RWBY flew over as Ruby slashed at Elder Princess Shroob's face and shot her a few times while Weiss brought out Eiskönigin and swung her sword down on her head where Blake slashed through her and then Yang fired a powered up Hadoken as Elder Princess Shroob let out a pained roar.
"Alright, now we're getting somewhere!" Yang fist pumped as Peach and the Daisys flew over and kicked her in the head as Baby Daisy threw her boomerang at her while Daisy made sure to punch her in the head. It was then Bowser and Roman lunged directly at Elder Princess Shroob as Bowser rolled into a ball and slammed into her head as Roman fired at her face where Neo then came over and stabbed her chest a few times.
Nora swung her hammer down on Elder Princess Shroob, where the latter grabbed a hold of her with a roar, but she engulfed herself in electricity and zapped her and released her grip as Jaune swung his axe down and hit her head on with Pyrrha launched huge fireballs at her and then Ren pierced through her with his Ren Bow. Marnie flew over with Luminary, Erik, Veronica and Princess Jade as Marnie quickly slashed at her from behind as Luminary used Kacrackle Slash, Erik using Ridgeraiser before slashing her with his knives, Veronica unleashing Kacrackle and then Princess Jade hit her with Crushed Ice.
Ghira let out a roar and then extracted his claws as he flew over and clawed at Elder Princess Shroob as Leone and Kali flew over together as they both punched her in the face as Scoop Swoop dive bombed on her head. Elder Princess Shroob roared and then jumped up to unleash another massive bolt of energy, but Neptune ran over and skewered her with his spear where Min Min flew up and threw her Ramram ARM to burn her before switching to her Megawatt and threw it down, making Elder Princess Shroob crash to the ground while she fired her dragon laser for good measure.
"Eat some of this, you piece of shit! BLIZZAGA!" Aerith yelled, unleashing a Blizzaga while Jeff fired off huge bottle rockets while Ness unleashed PK Rockin', Paula with a PK Fire and Poo with a PK Freeze as Pikachu and Pichu both unleashed Volt Tackle and slammed into Elder Princess Shroob as she tried to grab them with her tentacles, but then was hit by two Zero Lasers from the Samus's as she was knocked back several feet where the Minervas and White Wings flew down and struck her with their weapons, then Esdeath wrapped her up with a blanket of ice as she conjured up three ice mallets, tossing one to Ironwood and Sienna as they threw down and swung their mallets down and hammered her, shattering the ice while Elder Princess Shroob roared in agony.
"Let's finish this!" Mario said, pulling out a Mix Flower as he, Luigi and their Baby Bros quickly threw fireballs up in the air to make a massive fireball, then the Parfaits used Metronome as they both used Fire Blast to increase the density of the huge fireball. Dante and Baby Bowser then flew up and swung their sword and hammer down, sending the massive fireball down at Elder Princess Shroob, as Ruby went out of her way to cover Xena's ears just in case if it exploded… and sure enough, it did as Elder Princess Shroob roared in agony before falling to the ground in defeat.
End BGM
Everyone landed on the ground as they turned back to normal as Elder Princess Shroob went back to her normal form. "Heh… you… you think you have won… but you haven't… we Shroobs will come back… stronger than ever and we will bathe in your blood as we dance around on your corpses and burn the entire planet!" She said as she raised her arms up in the air. "WE! WILL! RETURN!" She roared as she fell limp on her back and exploded in light, leaving nothing but a mushroom behind.
"Phew… that was a hell of a fight…" Yang said. "Glad it's over."
"Agreed." Blake nodded.
"Hey." A voice said as they turned to see Dedede who was looking quite annoyed with all of them. "We need to talk."
Ohohohoho man, that was SO fun to write up! Hope y'all enjoyed it as much as I did!