In the same universe that resides the weird town of Gravity Falls, Oregon, there was a trio of teenagers. Those kids, a pair of twins (Dipper and Mabel Pines) and their rich girl rival turned friend (Pacifica Northwest), were currently discussing through phone with Pacifica's father, Preston Northwest, in the headquarters of the Multiverse Initiative, a order born to protect the multiverse from all kinds of threats, but that for years was inactive.
"You still didn't find that green rock?", Preston asked.
"Her name is Peridot.", Pacifica replied. "And no, we didn't find her yet."
"And you know, you're the only guy who calls her and the others criminals.", Mabel pointed out, after picking the phone from Pacifica.
"...Pacifica!", Preston snapped from the other side of the line. "Stop hanging out with those Pines!"
"And if she wasn't lost, she would be here...", Dipper sadly said. "...but still, I broke one of my legs because of her, so."
"...speak of the devil!", Mabel said, in a weird mix of happiness and sarcasm, as Sonic the Hedgehog, Pearl, Lapis Lazuli supporting Peridot, and Amy Rose came into the headquarters.
"Parent trouble, right?", Sonic guessed, looking at the phone.
"And you think I'll give you a chance? Not by a long shot.", Preston said.
"I'm not seeking forgiveness...and neither permission, for a long shot. The Multiverse's best defender disappeared, and we must fight.", Sonic said, in a tranquil fury, to Preston, after picking the phone. "And if you wanna get in our way...we'll fight you as well."
"Pacifica Elise Northwest...", Preston said in a sour tone to his own daughter. "Get them to jail."
"With a pleasure.", Pacifica sarcastically said before interrupting the call.
"Nice to see ya, Sonic!", Mabel said, as her blue friend gave a one-arm hug to her.
"You too, Mab.", Sonic affectionately said.
"You guys look...horrible.", Dipper said, awkard specially due to the presence of Lapis Lazuli, one of the responsible ones for crippiling his leg. "You probably didn't have luck those past years."
"Yup.", Lapis stated. "If it wasn't for a bit of Rayman's help, it would've been tougher."
"...I like to think that you look great.", a unexpcted, female voice ringed out, revealing herself to be Star Butterfly, transported to the HQ thanks to Eclipsa's help. "Yeah, I'm back..."
"Oh. Hello...?", Pearl awkwardly greeted her old comrade.
"This is awkward.", Lapis stated.
Later...
"We got new enemies to face off, right?", Dipper asked.
"And they can find us with ease.", Pearl answered.
"So we need all the help we can get.", Star stated. "Where did Tom go, by the way?"
"After that hero war, he had to escape and reside in a while on Giana's world. Or eles he'd be captured.", Pearl explained.
"Who's Giana?", Star asked.
"The Giana "Sisters".", Sonic replied, rolling his eyes.
"There's a Giana Sisters and a Steven Universe?", Star said, confused about the odd names of the new heroes of the multiverse. "Ok, Zalgo controls a army as powerful as him, and he took out the space police without any Infinity Stones. He'll not stop until he gets...Peridot's other gem."
"We have to keep it safe.", Pearl decided.
"It wouldn't be a better idea if we...expldoed it?", Peridot said, much to the shock of the others. "What?"
"We are not going to risk that!", Amy said. "That's a high price!"
"But it's one half of trillions of life forms I don't really care versus me!", Peridot tried to protest. "I'm much more worthless than them!"
"No.", Sonic denied. "We should not trade lives."
"Then how you became a legendary hero in the first place?", Peridot asked, silencing Sonic. "And for what NiGHTS did nearly die to save Mobius? Eh?..."
"...she does have a point, guys.", Star said. "Besides, if we remove the Stone from her, she'll still be the lovable gremlin we like."
"But not here.", Pearl reminded.
"We gotta find someone that can do that fast.", Dipper said. "Preston won't let you stay here, and we got not signals of Bendy."
"...I got a place on top of my head.", Sonic said, with a hopeful smile.
And that place was the Glade of Dreams.
In the universe created by the dreams of Polokus, Rayman, recently baptized leader of its forces, and his fairy ally Ly, walked down a hill on the quirky, dream energy-boosted world.
"The rest of the Glade must be warned about the danger.", Ly said, telepathically. "Their message will come."
"Send words to Globox as well.", Rayman suggested. "He's a coward, but mighty."
"And what about that one?", Ly asked, motioning to a tall, muscular figure with a gem on the chest.
"She's a war veteran. And I'm sure the Blacksmith got her deserved rest.", Rayman replied.
Said "Blacksmith" was Bismuth, who found residence on the Glade of Dreams after almost getting shattered by NiGHTS in relation for the death of her first human friends of the past. She calmly approached with her set of armory being packed in a sack.
"Where's the battle? And what is at stake?", Bismuth asked, tired but determined.
"On it's way, and half of the multiverse.", Rayman answered.