Chastity Chased: Regeneration mode (Gold)
Shrinking from the Cold: Private Sand, Sgt. Slate, Shrink mode (Gold)
Scrap Metal: Scrapyard, Chassisbot (Gold)
It's A Blast
Night Shift: Sentry bot, Leech mode (Gold)
Spoils of War: Meezor Mox, Thief mode (Gold)
Demolition Derby: Male Trooper, Female Trooper, Robot Factory Level, Vampire Mode (Gold)
Too Hot to Handle
Monkey Immolation: Crispin, Flame tag (Gold)
Disco Inferno: Louie Big Nose, Lt. Wild (Gold)
Burns Department: Undead Priest, Nightclub, Virus mode (Gold)
Team Series A
Club Soda: Slick Tommy, Jimmy Needles (Gold)
Station Stand: Lt. Shade, Zones mode (Gold)
Men in Gray: Accountant, Kawer, Assault mode (Gold)
Big Tony
Beat the Mafia Mission on normal to unlock the master...
Big Tony
Unlock arcade level called Streets
To unock the arcade level ''Streets'', just beat the game on easy difficulty.
Unlock Cardboard Characters
Beat the game on easy to obtain the Cardboard Characters cheat.
Unlock Characters In Arcade Mode
Earn a Gold medal in Adios Amigos (Arcade) to unlock Hector Babasco and Lean Molly.
Unlock Multiplayer Characters In Story Mode
When you beat a level on normal or hard, a character for arcade mode is unlocked. Here's the list ..
Siberia - Hybrid Mutant
Chicago - Big Tony
Notre Dame - Jacque de la Morte
Return To Planet X - Ozor Mox
NeoTokyo - Sadako
Wild West - The Colonel
Atom Smasher - Khallos
Aztec Ruins - Stone Golem
Robot Factory - Machinist
Space Station - Reaper Splitter
Unlock Multiplayer Maps
Mexican Mission: Available by Default
Ice Station: Available by Default
Hospital: Available by Default
Training Ground: Available by Default
Aztec: Available by Default
Scrapyard: Clear Arcade League - Amateur League - Mode Madness - Scrap Medal with a Bronze Medal or higher