The following are known CWCheat Codes for Chaos;Head Noah on Sony Playstation Portable (PSP).

_S ULJM-05692
_G Chaos;Head Noah [JP]
_C0 CG ALL
_L 0x401E65D0 0x000C0001
_L 0xFFFFFFFF 0x00000000
_C0 DEBUG MODE OPEN
_L 0x001E6550 0x000000FF
_C0 ENDING ALL
_L 0x101E6558 0x0000FFFF
_C0 EXTRA ADD
_L 0x001E6551 0x0000003F
_C0 EXTRA OPEN
_L 0x001E6551 0x000000FF
_L 0x801E6560 0x00030001
_L 0x000000FF 0x00000000
_L 0x801E65D0 0x00300001
_L 0x000000FF 0x00000000
_L 0x801E6710 0x00240001
_L 0x000000FF 0x00000000 
_C0 MUSIC ALL
_L 0x201E6560 0x00FFFFFF
_C0 TIPS ALL
_L 0x001E6733 0x00000009
_L 0x401E6710 0x00560001
_L 0x55555555 0x00000000