Sony PSP - Infected Cheats Unlock Bloodrayne: Succesfully complete all missions. Unlock Santa: After succesfully completing all missions, You can play as Santa. Unlocking Slipknot and Chimaira Avatars: These Slipknot and Chimaira Avatars can be found on the following missions. Unlock Chimaira: Mission 29: Kill one zombie by the chimaira sign Unlock Slipknot 0: Mission 5: Kill one zombie by the slipknot sign. Unlock Slipknot 1: Mission 7: Kill one zombie by the slipknot sign. Unlock Slipknot 2: Mission 10: Kill one zombie by the slipknot sign. Unlock Slipknot 3: Mission 13: Kill one zombie by the slipknot sign. Unlock Slipknot 4: Mission 16: Kill one zombie by the slipknot sign. Unlock Slipknot 5: Mission 20: Kill one zombie by the slipknot sign. Unlock Slipknot 6: Mission 23: Kill one zombie by the slipknot sign. Unlock Slipknot 7: Mission 26: Kill one zombie by the slipknot sign. Unlock Slipknot 8: Mission 31: Kill one zombie by the slipknot sign.

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