The following are known CWCheat Codes for Half-Minute Hero on Sony Playstation Portable (PSP).

_S ULES-01359
_G Half-Minute Hero [EU]
_C0 100 Speed
_L 0x090A40C0 0x42C80000
_C0 5 seconds, then turn them OFF.
_C0 999 Speed
_L 0x090A40C0 0x4479C000
_C0 Debug Menu (Highlight Options, Hold SELECT & X)
_L 0x088A0824 0x1020023F
_L 0x99FFF5A4 0x00004001
_L 0x088A0824 0x24040004
_L 0xD2000000 0x00000000
_C0 Doping Mode
_L 0xCF000002 0x00000009
_C0 Faster
_L 0x08834ED0 0x3C0341C5
_L 0x088B920C 0x3C0341C5
_L 0x08917B9C 0x3C0341C5
_L 0x088D4EEC 0x3C0341C5
_C0 Frozen
_L 0x08834ED0 0x3C033085
_L 0x088B920C 0x3C033085
_L 0x08917B9C 0x3C033085
_L 0x088D4EEC 0x3C033085
_C0 Low Weight
_L 0x090A4090 0x4479C000
_C0 Max Attack
_L 0x090A4030 0x4479C000
_C0 Max Defense
_L 0x090A4060 0x4479C000
_C0 Max Dodge
_L 0x090A4120 0x4479C000
_C0 Max Gold
_L 0x090A4180 0x47C34F80
_C0 Max Health
_L 0x090A4000 0x4479C000
_C0 Max Hit
_L 0x090A40F0 0x4479C000
_C0 Much Faster
_L 0x08834ED0 0x3C034205
_L 0x088B920C 0x3C034205
_L 0x08917B9C 0x3C034205
_L 0x088D4EEC 0x3C034205
_C0 Normal
_L 0x08834ED0 0x3C034185
_L 0x088B920C 0x3C034185
_L 0x08917B9C 0x3C034185
_L 0x088D4EEC 0x3C034185
_C0 Normal Timer
_L 0x58801000 0x00000000
_L 0x08801000 0x08804000
_L 0xD2000000 0x00000000
_L 0x88801002 0x000008A0
_L 0x08801000 0x08804000
_L 0xD2000000 0x00000000
_L 0x68801000 0x00000000
_L 0xB8801000 0x00000000
_L 0xC0000000 0x00001000
_L 0x50000000 0x3C033E85
_L 0x00000000 0x3C034185
_L 0xD0000000 0x00000000
_L 0xDC000000 0x00000004
_L 0xC6000000 0x08801000
_L 0xD2000000 0x00000000
_C0 NOTE: TO USE THESE CODES,
_L 0xCF000001 0x00000002
_C0 Slow
_L 0x08834ED0 0x3C034085
_L 0x088B920C 0x3C034085
_L 0x08917B9C 0x3C034085
_L 0x088D4EEC 0x3C034085
_C0 Timer codes (Requires Mission Reload):
_L 0xCF000000 0x00000006
_C0 Timer codes (Requires Mission Reload):
_L 0xCF000000 0x00000002
_C0 Turn codes ON on the Main Menu.
_C0 Unlock All Using Hiroshi Sandbox Debug
_L 0xCF000001 0x00000000
_C0 Very Slow
_L 0x08834ED0 0x3C033F85
_L 0x088B920C 0x3C033F85
_L 0x08917B9C 0x3C033F85
_L 0x088D4EEC 0x3C033F85
_C0 Very Slow Timer
_L 0x58801000 0x00000000
_L 0x08801000 0x08804000
_L 0xD2000000 0x00000000
_L 0x88801002 0x000008A0
_L 0x08801000 0x08804000
_L 0xD2000000 0x00000000
_L 0x68801000 0x00000000
_L 0xB8801000 0x00000000
_L 0xC0000000 0x00001000
_L 0x50000000 0x3C034185
_L 0x00000000 0x3C033E85
_L 0xD0000000 0x00000000
_L 0xDC000000 0x00000004
_L 0xC6000000 0x08801000
_L 0xD2000000 0x00000000