Infected Cheats
Infected Unlockables
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PSP | Submitted by JockoUnlock The Dollar Avatar
Highlight the 1$ Avatar in the custom avatar screen and do the following:
Hold R and spin the $1 avatar twice, stopping at his back. Press Triangle, X, Triangle, X, Triangle, Circle. - $1 Avatar Unlocked
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PSP | Submitted by KarlUnlock Bloodrayne and Santa
Bloodrayne - After completing all missions.
Santa Claus - After completing all missions.
Unlock Bloodrayne, Alternate method. - Get a gold medal on mission 33.
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PSP | Submitted by DaveUnlocking Stuff
Chimaira - Mission 29: Kill one zombie by the chimaira sign.
Slipknot 0 - Mission 5: Kill one zombie by the slipknot sign.
Slipknot 1 - Mission 7: Kill one zombie by the slipknot sign.
Slipknot 2 - Mission 10: Kill one zombie by the slipknot sign.
Slipknot 3 - Mission 13: Kill one zombie by the slipknot sign.
Slipknot 4 - Mission 16: Kill one zombie by the slipknot sign.
Slipknot 5 - Mission 20: Kill one zombie by the slipknot sign.
Slipknot 6 - Mission 23: Kill one zombie by the slipknot sign.
Slipknot 7 - Mission 26: Kill one zombie by the slipknot sign.
Slipknot 8 - Mission 31: Kill one zombie by the slipknot sign.