What platform, boss?

Game Maker 7 pro?
GM7 lite?
GM6?
GM5? (Please don't. *shudders*)
Other

Also, while a platformer would be excellent... why not EP theme?
Here's my idea, corny as it is.
Each level is based on a EP theme - So the main hub world is just plain EP, other worlds might include the world of exploding pirates, Endless Pocky Moutains, and so on.
To get invulnerability to enemies like trolls and being eXx1l3d for flame-wars, you must pick up a magical Zinga Burga. Zinga will protect you from one troll by banning it before he disappears.
Each "character" has a super-ability, and all characters can just jump on an enemy to hurt them; to defeat the trolls and avoid ban.
And to accompany the 8-bit music, 8-16 bit sprites of the player and the world at large. I'd prefer 32x32 sprites, but whatever.

I'm 'game' for this if you guys are. Heh heh heh.

P.S: And if you guys want to make make a Top-Down Shooter instead, I got a nice little engine in GM7, already made for a game that didn't really go anywhere due to lack of content. Got AI NPCs, lots of guns, and a somewhat broken stealth component, which can be disabled.