The following are known CWCheat Codes for Fieldrunners on Sony Playstation Portable (PSP).

_S NPUZ-00014
_G Fieldrunners (PlayStation Store) [US]
_C0 99 Health
_L 0x00242D00 0x00000063
_C0 99 Money
_L 0x002424CFC 0x00000063
_C0 999 Points
_L 0x20242CF8 0x3B9AC9FF
_C0 Inf money
_L 0x0023E5FC 0x3B9AC9FF
_C0 Inf points
_L 0x0023E5F8 0x3B9AC9FF
_C0 Infinite lives
_L 0x0023E600 0x3B9AC9FF
_C0 Invincible
_L 0x2000A100 0x00C02023
_C0 Money Decreases on Purchase
_L 0x20008C38 0x00C42023
_L 0x2001B190 0x00C42023
_C0 Money Increases on Purchase
_L 0x20008C38 0x00C42021
_L 0x2001B190 0x00C42021
_C0 Not Invincible
_L 0x2000A100 0x00C42023