LightningandIce: An X-Box mascot fighter? Well, there would only be two characters:

-Generic Soldier

-Generic Space Soldier

Also, there would only be two stages:

-Brown

-Gray

Also it would be a first person shooter.

Nah, I'm just kidding. In all, this a pretty good list. Descriptions are brief but you make a good argument. It would help, though, to mention what game they are from, since a lot of people won't recognize all of the characters, even by name. Pretty good over all, though. Nice job!