The following are known CWCheat Codes for Prinny: Can I Really Be the Hero? on Sony Playstation Portable (PSP).

_S ULUS-10407
_G Prinny: Can I Really Be the Hero? [US]
_C0 Freeze Time
_L 0x20046768 0x00C02823
_C0 Hold Triangle to Slow Falls
_L 0x989A1134 0xEFFF1000
_L 0x08B67C88 0xBE3851E1
_L 0xD2000000 0x00000000
_C0 Hold X to Moon Jump
_L 0x989A1134 0xBFFF4000
_L 0x08B67C88 0x3FD33335
_L 0xD2000000 0x00000000
_C0 Infinite Air-Jumping
_L 0x20081738 0x24630000
_C0 Infinite Air-Jumping (Alt.)
_L 0x00367CE8 0x00000000
_C0 Infinite Lives
_L 0x1898D942 0x000003E8
_C0 Infinite Scarves
_L 0x00367D00 0x00000004
_C0 Infinite Time
_L 0x18937054 0x00007E80
_C0 Invulnerable
_L 0x00367C60 0x000000DC
_C0 Lives Remaining
_L 0x1018D942 0x000003E8
_C0 Max Score
_L 0x0893704C 0x0098967F
_C0 No Fallen Prinnies (Boss)
_L 0x18937062 0x00000000
_C0 No Fallen Prinnies (Stage)
_L 0x18937060 0x00000000
_C0 One-Hit Kill
_L 0x2006F5EC 0xAE400120
_C0 Quick Combo Fill (Press R)
_L 0x989A1134 0xFDFF0200
_L 0x08937088 0x0067C280
_L 0xD2000000 0x00000000
_C0 Super Low Time
_L 0x0893705C 0x00000001