If Microsoft made a game like Smash Bros, what characters/levels would be included?

[Imaginedvl]

I can see few characters :)

My favorite: Brutus (good old Brute Force)

Then: The MasterChief, Marcus, Banjo, Kameo, Cortana, a promethean, maybe this roman from Ryse (cannot remember his name), The Arbiter, maybe one or two guys from Killer Instinct, Conquer, Alan Wake, a big flood guy...

 

Obviously the guy from Sunset Overdrive would do too...