Comet Observatory (Super Mario Galaxy)

Suddenly, an alarm sounded in the Observatory. "What in blazes?" Polari wondered.

"We're picking up something!" A Boomerang Bro exclaimed. "...And...it ain't pretty."

"What?" Polari asked.

"See for yourself."

Polari went over to take a look and his eyes widened. "Oh geez." He said. "Someone needs to go warn them!"

"What's the big deal?" A Koopa asked. "It's probably just a weak person trying to take them out. Besides, they got Lord Bowser, Erza and two Dragon Slayers."

"Yeah well, this one ain't weak." Polari told him. "It's a mentally unstable vampire who got her memories shuffled."

Koopa blinked. "OKAY! START PANICKING! THEY'RE ALL GONNA DIE!"

"GENSOKYO IS DEAD AS WE KNOW IT!" Shy Guy yelled. "AND SOON THE MUSHROOM KINGDOM AND EVERYWHERE ELSE!"

"Just how incompetent are Bowser's minions, anyways?" A Luma whispered to Polari.

"Extremely." He whispered back. "It's amazing that Bowser thinks they can take out Mario and the gang." He said.

"EVERYONE STOP PANICKING!" Fire Bro ordered. "ERZA DEFEATED HER ONCE, SHE CAN PROBABLY DO IT AGAIN!"

"Yeah, but not every battle is the same!" Shy Guy exclaimed. "This could be Erza's fall for all we know!"

"All of you need to have faith in them." Fire Bro said. "They'll pull through."

"I hope you're right." Koopa muttered.

World Star-5: Vampire Mayhem!

Super Block Land (Super Mario 3D World)

"Alright, there's the first Green Star." Mokou said as they kept walking around the area.

"Hmm..." General Guy threw a Bob-omb at a block, destroying it to reveal a stamp. "Aha!"

"Anyone get the feeling that they're about to meet someone powerful right about now?" Jr asked.

"Oh no...thanks for giving me something to worry about." Luigi muttered.

Erza summoned her sword. "I've been having an uneasy feeling when we arrived here." She said.

Marisa noticed something in the corner of her eye. "Heads up!" She exclaimed as they all looked to see Flandre landing in front of them...and making a small crater when she landed.

"Flandre!" Remilia exclaimed.

"That's not Flandre." Dark Pit said. "It's just a mindless puppet created by Hades."

Xion sighed sadly. "I know how that feels..."

Flandre looked at them all, summoning her Lavatein. "Flan..." Remilia looked at her sadly.

"We have no choice." Sakuya said, taking out her knives. "Let's give her everything we've got." She said as everyone got ready.

U.N. Owen was Her? (Touhou 6: Embodiment of Scarlet Devil)

"Taboo: Lavatein." She said, but they quickly dodged as Bowser got in his shell and rolled straight to her while Jr put on his mask to turn into Shadow Mario, painting something on the ground to create several paint Bob-ombs.

"Throw 'em!" He ordered as General Guy, Mario, Wendy, Sora and Captain Toad threw the paint bob-ombs at her, but she flew up in the air and fired powerful danmaku at all of them.

Meiling flew up in the air and kicked her, but Flandre caught her leg. "Pointless." She simply said, but Meiling swung her other leg up, knocking Flandre away.

Pit summoned Tiger Claws as he ran straight to Flandre and slashed her several times, but she dodged every slash and kicked him away, then firing danmaku at her but Dark Pit got in the way and summoned Guardian Orbitars to reflect them back. "Thanks, Pittoo!"

"No problem...and STOP calling me that!" He exclaimed in annoyance.

"Spirit Sign: Fantasy Orb!" Reimu exclaimed.

"Loving Heart: Double Spark!" Marisa exclaimed.

Flandre smirked and then quickly flew to avoid it and then fired more danmaku until pulling out a spell card. "Taboo: Maze of Love."

Erza pulled up her Adamantine shield to block it, then going in Black Wing Armor to fly up and slash her several times, but once again, she dodged...and then punched Erza hard enough to send her to the ground. "FIRE DRAGON ROAR!" Natsu yelled.

"SKY DRAGON ROAR!"

"ICE MAKE: ARROW!"

"OPEN! GATE OF THE LION! LOKE!"

Zelda used Din's Fire while Link fired multiple arrows, but Flandre dodged them all and then kicked Loke away, then she was surrounded by knives. "Don't move." Sakuya warned.

Flandre smirked and then clenched her fist as the knives just simply exploded. "Is that the best you got?" She taunted before flying and punching Sakuya right in the gut to send her flying down straight to the Toads, then dodging Eirin's arrow and Reisen's laser bullet. "You think you can easily take me down? You got a death wish."

"EAT BULLET BILLS!" General Guy yelled, firing Bullet Bills locked on to her, but she kicked them away and they landed and exploded near them. "Argh..."

Remilia wasn't doing anything; she was looking at her sister. Flandre... She thought. This isn't you.

"Any one of you idiots like to try me? I'll destroy you!" She exclaimed.

"FLANDRE! STOP THIS!" Remilia screamed as she flew up. "This isn't you!"

"Oh my dear Remilia, of course this is me." She smirked. "You see, Hades gave me a job...to get rid of all of you idiots." She said, extending her hand out to Remilia. "I've always wanted to do this to you...ever since you locked me up. I'm just thankful that lord Hades freed me." She smirked sadistically. "Now...DIE."

"Water Sign: Bury in Lake!" A voice exclaimed as Flandre yelled in pain as they all looked to see two people walking up to them.

"Patchy!" Reimu exclaimed. "Koakuma!"

"I was wondering when they would show up." Pit said.

"We got here as quick as we could after Palutena told us what was going on." Patchouli said.

Flandre growled under her breath. "Forget this. You're lucky these two showed up." She said as she made a portal. "Next time...you won't be so lucky." She said before flying in.

Super Block Land

"Hmph..." Bowser folded his arms. "Next time, you'll go down."

Koakuma looked around and sweatdropped. "This place is a mess..." She said.

A tear fell down Remilia's cheek, as Rosalina and Peach looked at her sympathetically. "Poor girl..." Peach sighed as they took the Flagpole while getting the scattered two Green Stars.

Meanwhile...

Medusa's Castle (Kid Icarus: Uprising)

"You were so close! THIS CLOSE to obliterating them!" Ghirahim exclaimed. "And then those two Scarlet Devil morons decide to ruin the fun!"

"I think Hades didn't give her enough juice..." Yukari said.

"Whatever, I'll get them when the time comes." Flandre said.

"May I make a suggestion?" Antasma asked. "Why don't you absorb some of Shadow Queen's dark magic?"

Yukari looked at him. "No way, bat freak! You want me weak?"

"Just a little bit of your power. Not a whole lot."

"Alright..." Yukari sighed and held her arm out to Flandre. "Just so you know, I prefer this body and not yours."

"I'm okay with that." Flandre said as there was a dark aura surrounded her.

"Okay, that's all I'm giving you." Yukari said, pulling her arm away.

"Now this...got more interesting." Hades chuckled.
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I kinda wanted Patchy and Koakuma in the story too. The whole SDM crew is here now!

I wanted to put in Star-6 in here too, but I didn't feel like putting it in here for some reason. Eh, whatever.