I think it's worth looking back at the best indie games of 2010 (as determined by TIGS), to see what is worth including in Indie Brawl.
Super Meat BoyThis game is super-popular, but I don't think there's much material we can use. Meatboy is charismatic and iconic enough to be a main character, but he doesn't do anything but run and jump. I don't think you could make a move list for him. He will make a great support character, though.
The level design and visual style, while both great, aren't really unique enough to make a good level. And there are no items in the game.
VVVVVVIt's being made into a level. Veridian could also be a support character, though it's hard to say what he would do.
Hero CoreCome to think of it, Flip Hero would make a fantastic support character. I already added him to the list.
MinecraftMinecraft will make a good level, and the creeper will make a great support character.
Super Crate BoxIt's a very arcadey game. I don't think there's much content to take. I suppose you could make a support character using one of the weapons, but the weapons are all pretty generic (if very well-designed).
StreemerzJoe could actually make an interesting support character, with a grappling hook attack.
L'Abbeye des MortsDon't see much to take from this game. If we made it into a level, people would probably just think of Castlevania.
AmnesiaThe feeling of helplessness and the terrifying atmosphere that defined this game would be out of place in Indie Brawl.
HydorahMost shmups don't fit well into Indie Brawl, but I think Hydorah could be the exception. There's lots of memorable material there that could be used to make a good level.
Space FuneralThe visual style and atmosphere in Space Funeral really stand out. This could make it a good stage. At the very least, Phillip could make for a good support character.
Desktop DungeonsEverything is pretty abstract, and there aren't many visuals. Maybe an item or two could be taken from it, but nothing springs to mind.
NorrlandI've never played it, and have no idea what to make of the trailer. Maybe someone else here has a better understanding of the game than I do.
RedderAgain, I just don't see much material to draw from. It could make an okay stage, but there are definitely better options.
LimboIt looks like it would make a fantastic stage, but I'm a PC gamer, so I really can't say.
Revenge of the TitansThis just came out, but the Titans are fairly iconic. They could make okay supports.
Give Up Robot 2I love this kind of short and intense platformer, but unfortunately, they tend not to have much that could be used in Indie Brawl. Super Meat Boy has the same issue.
RecettearRecette seems like she could be an interesting support character, though I haven't played the game myself.
suteFI haven't gotten around to playing this yet (but I really want to!) Looking at the trailer, there might be good material for an item or support character. Does anyone have any thoughts on this?
HoukaimuraThe game might be a big obscure, but the main character would make a good support character. Though it might be difficult to determine which attack he would use.
FlotillaAs a strategy game with the aesthetics of a space-themed shmup. I don't see much we could take from this.
Digital: A Love StoryText-based, so there's probably nothing we could use.
OthersOctodad is classic. He could be an awesome support character, though I'm not sure what he would do.
Ninja Senki is a short game, but the ninja has enough charisma to be a support character. Ninjas with clothes are probably too generic for Indie Brawl, though.
Joe Danger is fairly notable, but I'm not very familiar with it. I'd imagine Joe could make a unique support character, with his bike.