As she arrives she sees Pinkie and Amy trying to keep up with the blazing speeds of the hedgehogs and Dash. As she trots up to Applejack, who is panting and barely able to track the fight with her eyes, Applejack says, "He's too much… That Hyper form they got is draining fast, but this Mephilzo bastard ain't budging. Not to mention Shadow… he's too hurt."

Mephilzo backhands Sonic, before tossing Rainbow at the ground. Mephilzo fires a ball of energy at the ground, and it disintegrates the ground around her, but she flies back up. Shadow tries to flank, but Mephilzo punches him right in his still bleeding wound, Shadow winces in pain. Mephilzo then kicks Shadow into orbit and blasts off to continue his rapid-fire assault.

Sonic and Rainbow follow, sensing an opportunity to join in Twilight also rockets upwards.

Mephilzo catches Shadow then increases his speed further, reaching the remnants of the moon in a second. Mephilzo spins and slams him into every chunk of the moon he could find before smashing him into a crater.

He turns to see Twilight, Sonic and Rainbow Dash, frowning deeply upon seeing Twilight, he then says, "Oh great there's another one, well at least we have the final roster, four, soon to be three, left out of ten. I was worried for a while, thinking that Applejack was going to Hyper too, and embarrass me but seems like you used your emeralds a little too much, only enough energy for two Hyper Forms and one of them is playing doctor? Such a shame."

Sonic looks down at Shadow, and frowns, "Damn, Shadow's really hurt. It wouldn't be a good idea to do that with him, but…" Sonic looks at Rainbow Dash, "Dash, I have a really stupid idea, but it has to work."

Rainbow looks over, "Hit me with it, Blue."

Sonic grins nervously, "How good are you with chaos control?"

Rainbow Dash looks over knowing exactly what he means, "How would that even work? We don't have the same… anything?!"

Sonic responds with a smile, "We may look different but there's no doubt we have the same heart beatin' freedom in our chests. No offense to Shadow but this fusion is bound to last longer than Shadic cuz we're like two peas in a pod. Are you with me, Rainbow Dash?"

Rainbow Dash looks at Sonic in his eyes, she first feels a wave of self-doubt pass over her which is then followed by a surge of self-confidence, "You bet, Sonic the Hedgehog! Let's show this guy we mean business!"

Mephilzo comments, "It won't matter. Fuse. Grovel. Cry. Pray. The end will come all the same."

Sonic and Rainbow Dash both level out their power, then they both yell out "Chaos! Control!"

The moment their energies combine, the ball of light that is produced is so bright that its rays burn away the pieces of the darkness of Equestria. As the form solidifies, two glowing blue eyes appear in the light.

This new being is bright white, and has a Mobian hedgehog head, the middle of their head has a line of rainbow-colored mane that flows upwards and has the colors flow backward, they have Sonic's hands and gloves a bit of rainbow color flows up to the elbows. The lower half is hooved and has a rainbow-colored tail, there are also wings on their back replacing where the back quills would be. On their left flank is a cutie mark of a rainbow-colored Chaos Emerald, on a cloud shooting rainbow colored lightning.

Twilight and Shadow look on in amazement. Then they start stretching their legs on a fairly stable asteroid, Mephilzo then asks, "What is it you think you're doing?"

In a voice that sounds like two people talking at once, they say "What's it look like, genius, I'm stretching my legs."

Mephilzo then retorts, "Whatever makes you comfiest in your coffin... What do you call yourself?"

"I'm Hyper Sonic Rainboom or just Sonic Rainboom. You'll get to know me in a few seconds just wait."

Rainboom then says "Done!" and takes off swinging gut punching Mephilzo so hard and fast, the follow through sends him farther away from Equestria.

Rainboom looks back at Twilight. "Stay here, Twi. I got this guy covered for now." They then disappear, catching up to Mephilzo in an instant, they grab the back of his head, then accelerate him deeper and deeper into space. Rainboom lets go and sends Mephilzo into a gas giant the size of Jupiter. As they watch him plummet, they then see the gas giant glow black, then explode, as it is annihilated. Mephilzo then bursts at Rainboom, and Rainboom does the same, they both punch each other at the same time, the collision bursting a multitude of moons in the former gas giant's orbit. Then they go back in for an assault, Mephilzo and Rainboom clash annihilate every moon around this gas giant, Mephilzo then throws a massive energy ball at Rainboom, as Rainboom charges an attack in their hands, the hands glow brilliantly with rainbow colored energy, then fires a wide energy beam colored in rainbow.

The clash atomizes everything that was once there. Mephilzo gets more ferocious, going in with claw attacks rather than punches, these attack deeply lacerate Rainboom's arms and legs. they parry and dodge but still get cut up. Mephilzo shoots out a spear of dark energy, Rainboom just dodges as it cuts a few of their hairs, then delivers a upside down double kick to Mephilzo's chin. They swing down their wings causing two Cross Slashes to chase Mephilzo, as he rights himself, both of his arms are sliced off. As Rainboom, appears behind him, with their fists put together into a double axe handle charged with bright white energy, Rainboom then yells, "Rainboom Comet!" and smashes Mephilzo in the head so hard that his body rainbooms through space, Mephilzo slams into a moon in another solar system.

He bursts off the moon, and shoulder checks Rainboom at incomprehensible speeds, Rainboom coughs up blood, and slams into an ocean planet in a completely different solar system. Rainboom floats above the water breathing heavily as they look up, they see a massive black ball hurdling toward them, they look behind themself to see an alien species' city on the water. They open up their palms and charge as much energy as possible, shouting, "Hyper Rainbow Wind!" then fires a concussive blast of energy upwards, it collides with the energy ball and obliterates it.

It hits Mephilzo which shreds him into pieces, but as the attack fades, his pieces recoalesce.

He breathes heavily and Rainboom appears, also breathing heavily. "Let's settle this." Mephilzo says dripping with pure hatred.

Then they both super chaos control to Equestria. Sonic Rainboom teleports to Ponyville as Mephilzo, appears in the air, he holds his hands to the sky, "I commend your efforts, Hyper Sonic Rainboom. But now I must change my plans, I cannot allow you to live, either of your halves. So I'll destroy the emeralds now and torture Mobius instead!" then the black sky swirls down and twists itself into a ball of energy, it grows and grows as Mephilzo then yells, "This is your end, and my beginning."

The ball pulses with energy and condenses. Then Mephilzo puts it between his palms then fires a black beam surrounded by white and yells out "Genesis!". Rainboom starts to sweat as they put their hands together, and wind swirls and twists in their palms, then sparking with rainbow energy and lightning. They look back at some of the ponies staring at the coming battle. Then they yell, "What the hell are you gawking for, get to cover, now!" as they focus all the power they can muster, their cutie mark starts to glow brightly.

Then they yell out, "Freedom's Breath!" and Sonic Rainboom fires a blast of energy that is white surrounded by rainbow. Their beams clash and it breaks every window in town, cracks trees, bending and creaking houses.

Mephilzo sees Rainboom's power waver, he capitalizes on it and pumps more energy into the beam.

It pushes Rainboom back, their hooves grinding against the ground, but they find their footing and push back. It's not by much but they're at a standstill and they feel their fusion fading.

Before they could worry Hyper Fluttershy and Hyper Twilight appear next to them. "Let's do this Rainboom!" Twilight yells out, and then Fluttershy nods.

They both put their energy into the blast, Mephilzo continues screaming as he plunges his whole being into the Genisis.

Then a Chaos Spear and a Party Favor hit him at the same time, as Super Pinkie and Hyper Shadow, both appear. The explosion knocks him off kilter, but it's finalized by a hammer slamming into him from behind, smashing him into his own attack. "Now!" the three hyper formed heroes scream out as the blast completely obliterates Mephilzo's Genesis. The light from blast scatters him apart, but he keeps regenerating, but then he feels something grip him telekinetically, and condenses his particles that try to escape. Silver smiles as he clenches his fists making sure every bit of Mephilzo burns away in the light.

As the beam disperses, the ponies and hedgehogs land and a few turn off their super forms. Sonic and Rainbow Dash unfuse and wind up in their base forms. Both clearly hurt. they look at each other and smile. Shadow gives Fluttershy a thumbs up, as he falls to one knee, he looks down at his wound and says, "That's going to scar." Silver walks over, "Tell me about, mine's already scarred, see?", Silver points to a scarred wound on his chest that Fluttershy healed. Hyper Fluttershy walks over to Shadow and starts to heal him, Shadow sees this form, Fluttershy's mane is pink like her base form but has streaks of red and magenta and her coat is white like the other super forms. Shadow then says, "You were very formidable Fluttershy. You should be proud." As his wound heals over, and a slash remains on his stomach. Fluttershy smiles and says, "I wouldn't have been able to do any of this without you Shadow, I'm glad that you're my friend."

Twilight remains in her hyper form and looks onward into the middle distance, then she says, "We still need to find the princesses. I'm scared to think where they could be."

Sonic then looks over, "Safe to say they're both in the Void, Twi, however they managed to capture them. If only we had a way to get there."

Twilight then thinks for a moment, "I think I have an idea." She steps away from everyone as she tries to channel dark magic into her horn. She produces a long black gemstone blade not dissimilar to Fist's blades. Then she focuses and then makes a quick swipe with her horn as the blade fractures and falls apart. Then as she looks forward, space-time opens up like a wound, revealing an inky black vortex.

Twilight looks back, "Who wants to come with me?"

Sonic and Rainbow are healed enough to move comfortably by Fluttershy as they stand up, Amy summons her hammer and nods. Shadow and Silver power down and sit on the ground, too tired to go anywhere. The others are too tired to press on, including Fluttershy who powers down the moment everyone is healed.

Twilight, Sonic, Rainbow, and Amy step through the black wound, when their eyes open, they can only barely see a metal corridor with black slime streaking down the walls. They hear talking down the hallway, two voices, Twilight and Dash recognize the voice of King Sombra while Sonic and Amy get a shock down their spine hearing Dr. Eggman's voice.

They follow the sounds and they all gasp as they see Sombra trapped in a glass tube, as well as Dr. Robotnik, still crucified on a wall, disemboweled and only half his face remaining. They talk casually to pass the time, across from them is a device that secures the Scepter of Light in place, this artifact is also the only light in the room.

"I feel my magic return to me but, I simply cannot escape this glass prison." Sombra grimaces.

"Could you quit yammering on and on, if I'm stuck in here for all eternity I want silence." Eggman growls out. Then they both turn their heads, Sombra snarls seeing Twilight, while Eggman looks at Sonic with contempt. Twilight sees Sombra in surprise, while Sonic stares daggers at Eggman.

Sonic walks forward and looks up at Eggman's mutilated state. "Guess Mephilzo really took his anger out on you, huh Egghead?"

"He did. That wretched beast tortured me like he was the devil himself." Eggman looks down at Sonic as Sonic then says, "I don't say this about a lot of people, but if there were any scumbags on Mobius that deserved this, it'd be you."

Twilight walks up to Sombra, and Sombra speaks, "I wasn't here as long as the human, but I was made… subservient. He took my magic from me." Twilight then pointedly asks, "If I let you free from this place, what will you do?"

Without a second glance Sombra says, "I will take back my kingdom, no matter the cost." Twilight brightens the room, "Look at me, Sombra." Sombra then notices the wings and the mane and says, "You look a miniature Celestia, fitting I suppose, then he mockingly says, "What will you even do? Kill me? Please." Eggman then says, "If you at all value your pathetic life, I suggest stop talking."

Sombra snarls at Eggman, "Silence Human!"

Eggman stares into the eyes of everyone in that room, "The creatures before us, just killed the devil, I can see it in their eyes."

Sonic smirks "Finally realizing you lost Eggy?"

Eggman leans his head back, "What else am I to do in this situation? This is my last spare body. My main facility was obliterated, and I am crucified on this wall for all to see. This is most I have ever failed in my life. Why don't you do us both a favor, kill me or leave. Like I told the petulant horse, that I loathe to spend eternity with; I would rather spend my eternal suffering in silence."

Sonic looks up at him, "Yeah I think I'll just leave you up there."

Amy eyes Eggman as she walks toward the scepter, "Call it a hunch, but I think the princesses are in here."

Twilight walks over to the scepter as Rainbow looks up at Eggman, "You're the guy who terrorized Sonic's home. You sure aged like milk, egghead." Eggman coldly stares, "I would have roboticized you into a bomber-bot, you would have dropped gas bombs on unsuspecting people. You drove my brother insane. He was weak, an embarrassment to the Robotnik name. if G.U.N. didn't send him to Equestria, I would have roboticized him into a coat-rack."

Rainbow looks over at Sonic, "This guy has some serious problems."

Sonic responds, "Yeah, he's something to deal with but this place is starting to really rub me the wrong way," Sonic turns to Twilight and says, "We ready to get outta here?"

Twilight nods, "We are, but what about them? Should we just leave them here?"

Sonic then smiles, "Hold on they need some entertainment while were gone." He walks up to the monitor and starts playing all the footage from the beginning then sets it to loop. "There. Maybe if they watch you and your friends for a while, they'll learn something."

Eggman's eyes widen with hate, "You damnable hedgehog, turn this preschool drivel off!" Then the four walk off, ignoring the screaming man on the wall, Twilight looks back at Sombra who stares at her with unfathomable hatred.

They leave the void with the Scepter in Twilight's magical grip, everyone looks in awe as Twilight smashes the Scepter onto the ground and the forms of Celestia and Luna stretch out of the light, with their return. The sun returns to its rightful place in the sky.

They both look shake their heads and looks around, Celestia looks at Twilight in astonishment as she closes the portal and powers down. "Twilight, my dearest pupil," then she eyes the others, "and her pony and hedgehog friends, I thank all of you from the bottom of my heart. Luna and I must travel back to Canterlot, it will take time and resources but, fixing what has been damaged and destroyed is our top priority." She looks over at Luna who looks for the moon but can't feel it. "Sister, the moon has been destroyed, is there a way to fix that as well?"

Celestia giggles, "I'm sure there's a way to- ", Celestia comprehends what she said, "Did you say the moon was destroyed?"

Luna then says, "Yes, it's in pieces."

"Pieces you say?" Celestia then looks at the ten heroes. "I'm sure our esteemed heroes can help us fix the moon. Anyway, it is time for us to return to Canterlot. Once we set up some temporary homes, there will be a grand celebration!"

The princesses fly back to Canterlot and then Sonic turns to look around, he sees uprooted trees, broken houses, and deep canyons in the ground. Sonic frowns, "Man we did a number on this place."

The new heroes of two worlds go to their respective homes and where they've been sleeping, to rest their aching bones. After a few weeks of rest and relaxion, Sonic got to tell Tails and Knuckles about what happened on Equestria as Twilight finds a way to interface an Element Emerald to the portal, Sonic throws all the Chaos Emerald and Master Emerald through the portal, a little haphazardly when Knuckles barks angrily through the P.D.A.

The portal becomes more permanent, and a massive party is held in Canterlot Castle, even though the city is only partially reconstructed. The banquet also acts as an unveiling of a new mural in the hall of friendship, Knuckles and Tails pass over to finally meet the ponies they've only met through a screen.

Twilight is given the opportunity to speak at the end, "Ponies of Equestria, my name is Twilight Sparkle. Equestria has faced a hard ship this past year on a scale far larger than anything we have ever dealt with. While I have sworn to fix the moon, there is one thing that we all have lost. Ponies we care about and love. but rather than remembering for how they died, we should remember them for how they lived. We should also celebrate the people who fought for our world. These brave hedgehogs came to our world as strangers but ended putting their lives in danger to save us. The Elements of Harmony and the Tree of Harmony may never go back to normal. There could be more things that lurk in the dark that crawl out from nowhere, but we are going to be steadfast to defend this place, our home, and the world of Mobius, if it needs to be saved." There is a loud applause of hooves.

As the night winds down, Sonic drinks some punch and looks out at the frames of houses and construction that is on hold. Rainbow Dash trots up behind Sonic. they both stare out from the castle. Rainbow Dash then says, "Hey, so… Just want to let you know, I'm sure they're proud of you. the Freedom Fighters I mean." Sonic looks over with a smile, "Thanks Dash, and I'm confident your family would be proud of the fact they raised the coolest pony around." Dash smiles back at Sonic and holds up her glass, they clink glasses and drink. Dash then continues, "So when I come back to Mobius, we need to race or have some other kind of contest!" Sonic then says, "Honestly Dash, when I get back to Mobius I might just take it really easy for a while. Equestria's been fun, but everything else has been pretty rough. Say, we could go to a nice beach, set up our hammocks and just snooze for a while. I could take you to a few islands I know of back home actually." Rainbow gets excited, "Oh my gosh a beach on another planet! That would be way beyond cool."

Shadow crosses his arms and sticks to the corner of the party as Twilight approaches him, "Shadow the Hedgehog being a loner at a party hosted by the princess of friendship, I'm offended." Then she laughs, "Kidding, of course." Shadow smirks then goes back to looking around. He then speaks, "I've never been one for being open. Ever since Maria passed, I closed myself up. In some alternative reality I could have been as full of bitter hatred as Mephilzo. If I never met the Sonic the Hedgehog or," He looks at Twilight, "you and your friends, I would probably be the villain. But I'm not. A past version of myself would scoff at the fact I found friendship in all of you. That I found myself caring." Then he looks forward, resolute, "Twilight, I'm proud to count myself as your friend."

Twilight smiles, "Aw, that's so nice of you Shadow. When we first met, I won't lie, for a while I thought you hated us. Then you put so much time into building Fluttershy's confidence, and you basically streamlined our training, and I realized that you are a really good person. I'd give you a hug, but I get the feeling you aren't the touchy-feely kind of guy." Shadow grumbles for a second, "…Just one."

Twilight looks over, "What? I didn't hear you." Shadow repeats himself and holds up one finger, "Just one, Twilight, you get a singular hug." Twilight beams flies up and hugs Shadow tight, "Thank you so much Shadow." Shadow gives a weak hug back and then says, "Don't mention it. I mean really don't mention this." Twilight winks, "Okay, Shadow, I won't ruin your tough guy façade."

As Twilight walks back to the party and Shadow remains but he remains smiling.

Silver levitates some fillies around, to provide some entertainment, as he does it he makes carnival music with his mouth as the kids laugh. Rarity and Applejack come over as they see Sweetie Belle and Apple Bloom getting spun around.

"Well ain't that nice of ya Silver, playing with the kids like this." Applejack says, as Silver replies, "Yeah, with what the kids were going through, with all this crazy stuff happening, I feel like they deserve a little time to have fun. It's… rough growing up too fast. I would know."

Rarity smiles, "Darling, aren't you going to enjoy the party yourself, I'm sure the kids wouldn't mind if you took a small break." Then Scootaloo says, "C'mon Silver just a little longer, I wanna go even higher!"

Silver then looks at Rarity, "Well, clearly my hands are tied; up you go!" and he levitates Scootaloo up in the air, the Applejack frowns and says, "Well we were just wondering, When you were going back to your time? Since your Kronos Control is workin'"

Silver then looks over and starts to feel guilty, "O-Oh! Well, I wasn't thinking about leaving for a week or so, and besides, I'll be back, I'm sure some other time-anomaly will rear its head."

Rarity then says, "Since we knew you were leaving, the girls and I got you something." Then Rarity levitates over a box, Silver looks over, and he slowly starts to put the kids on the ground, much to their chagrin. He walks over to the rectangular box, and he opens it to see a scarf with six sections, each one representing each pony, and it has their cutie marks emboldened into it. Rarity then says, "We didn't want you to… forget us, and I'm sure that the future gets very cold." Silver's mouth is slightly agape, stunned, and he wraps the scarf around his neck, then his eyes start to well up. "Thank you… thank you so much, this is the nicest thing anyone's ever done for me." He hugs Applejack and Rarity at the same time becoming an emotional wreck, "You girls are the best friends a hedgehog could have." He says while crying, Rarity and Applejack smile and pat him on the back.

The next day, Sonic, Shadow and Silver, stand in front of the portal in Twilight's house, Amy, Knuckles and Tails went home last night and said their goodbyes. Silver having his new scarf on right at that moment as Shadow looks over and says, "You know its summer, right?" Silver then looks over and says, "I don't care how hot it is, I'm not taking this off." The two walk through the portal.

Sonic then looks at Rainbow and says, "See you in a bit Dash, don't be a stranger!"

Rainbow Dash smiles and says, "You come back anytime too, Sonic, your friends will be here."

Sonic then walks through the portal, onto his next adventure, maybe someday returning to Equestria.