Okay, my sibling and I have a rise hc I want to share.
So imagine Big Mama somehow got all (or some) of the other versions of the turtles and shoved them into the Battle Nexus to fight with each other and find out who's the best of the turtles. So like all the Donatello's fight, all of the Raphaels fight, etc.
Donatellos:
They're shoved in and Big Mama announces the rules (including a prize for the winner). All of them start trying to figure out what's going on and how to get out of this place. (everybody's kind of dimension hopped by now, so I don't imagine it taking too long), but then Rise Donnie just immediately attacks all of them in manic glee of proving himself the superior of these Donatellos (I'm imagining the Snow Day scene where Raph says hit me and he comes up behind him with his tech bo "oh, please let me") Obviously he calms down and its more of a funny moment than anything else, but he doesn't know who these turtles are and a trophy or prize for being the "most intelligent and skilled purple turtle" is just too much for him to resist at first.
Leonardos:
Rise Leo is obviously overjoyed at there being more Leos, but then is immediately disappointed that they're all boring. He's pretty good at catching Big Mama's plans so he probably doesn't fall into the temptation, though he is certainly tempted to prove himself the best. After not being taken seriously by the other Leos (they are all probably super confused and disappointed in him, except maybe 87, but 12 especially is just like "why are you like Mikey?"), he decides to prove that he's better by getting them all out safely.
Raphaels:
I think they're all ready to fight, probably coming to blows, though mostly out of butting heads rather than actually playing the game. Rise Raph is the one to calm them down, knowing that they should try and figure out where everyone else is before anything else. The other Raphs are just shocked by Raph's size and appearance. Some of them are jealous but some of them are just in awe. Rise Raph is a little too concerned with finding his brothers to get really worked up about stuff, but he does find how little they are very cute (particularly with 12 and/or 87)
Michelangelos:
They're all just ecstatic about finding each other. They ignore Big Mama entirely and just start bonding over random crap.












