Unlock Infinite Adrenaline
Complete stage 5
Unlock Infinite ammos
complete stage 4
Normal Challenge mode
Beat game in Normal
Supercop unlockables
All cheats and skins are unlocked by playing on Supercop difficulty.
Super Deformed Mode - Beat Pink Starfish mission
Infinite Ammo - Beat Train Yards mission
Infinite Adrenaline - Beat Back Streets mission
Incredibly Fit Dog - Beat Under Rink mission
No Damage - Beat Rooftops mission
All weapons - Beat Villa mission
Fists of Flame - Beat Old Church mission
Cabal Boss Skin - Beat Dockyards mission
Maxine Skin - Beat The Mansion mission
Unlock Incredible Fit Dog
complete stage 6
Play Multiplayer with one disc
It's simple. First, the host must create a game. Choose all the settings, etc, and actually start the game. Then, pop out the UMD, and give it to a friend. Your friend simply loads up the game on his PSP, and then joins your game. This can work with several people in the same manner. However, setting the frag limit high is a good idea, because once the game is over, you have to redo the whole process, because the game needs to load again, and cannot without a UMD.
Supercop mode (hard difficulty)
Beat game in Normal
Unlock Super Deformed Mode
complete stage 2
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