Alternate Costumes
You have to get the gold medal then you can use this costumes in infinite mode
Ballerina Deadpool (Gold in Great White News HQ): Deadpool wearing a frilly skirt and tiny crown over his suit (swords replaced by magic wands)
X-Men Costume from Deadpool # 17 (Gold in Beneath the Streets): Deadpool wearing the original yellow and blue X-Men uniform
Classic Deadpool (Gold in The Watching Sentinel): Earlier version of costume with silver bandolier (swords replaced with rubber chickens)
French Maid Deadpool (Gold in Magneto's Prison): Deadpool wearing a french maid's had and brazier over uniform (sais replaced with feather dusters)
Pirate Hat (Deadpool's Carnivale, Infinite Mode only): Just Deadpool in the same Pirate Hat he wore in the actual level
Ultimate Deadpool (Gold in Catacombs of Genosha): Deadpool's costume from Ultimate Marvel universe (swords replaced with molten sabers - the same sabers you see on the weapons rack in the apartment bedroom)
X-Men Costume from Cable & Deadpool # 8 (Gold in Office Spaces): Green and gold variant of uniform with the X-Men symbol on chest
Chef Deadpool (Gold in Citadel Courtyard): Deadpool wearing chef's hat and no mask (swords replaced with spatulas, sais replaced with rubber chickens)
And of course for those of you who reserved with Gamestop (and since I'm kinda on a roll here)
Uncanny X-Force (Gold in GRT Plaza): Grey and black variant of uniform from his time with Wolverine's black-ops team
D-Pooly (Inside the Tower): Deadpool wearing a red and black track suit with a bandana and lot's of bling