The following are known CWCheat Codes for Dead Head Fred on Sony Playstation Portable (PSP).

_S ULJS-00136
_G Dead Head Fred [JP]
_C0 Earthworm99
_L 0x2049A764 0x442EF000
_C0 HP Inf
_L 0x50CB77D4 0x00000004
_L 0x00CB77D0 0x00000000
_C0 JumpUp
_L 0x00CB7AC7 0x00000040
_C0 Money MAX
_L 0x2049AC0C 0x4B18967F
_C0 Moon Jump
_L 0xD0000000 0x10004000
_L 0x00CB72A3 0x000000C0
_C0 Rage Attacks Inf
_L 0x50CB79D4 0x00000004
_L 0x00CB79C4 0x00000000
_C0 SpeedUp
_L 0x00CB7ABF 0x00000040