The following are known CWCheat Codes for Final Fantasy II on Sony Playstation Portable (PSP).

_S ULUS-10263
_G Final Fantasy II [US]
_C0 255 First Item (Dupe Item)
_L 0x01397427 0x0000FFFF 
_C0 255 First Item (Dupe Item)
_L 0x01397427 0x000FFFF
_C0 Firion 1st Magic LV
_L 0x013971AB 0x0000000D
_C0 Firion Equipment LV
_L 0x013971A5 0x0000000B
_L 0x013971A7 0x0000000B
_C0 Firion HP 999
_L 0x11397164 0x000003E7
_C0 Firion Max HP
_L 0x11397164 0x00000330
_C0 Firion Stamina
_L 0x0139716C 0x00000030
_C0 Firion Strengh
_L 0x0139716A 0x00000063
_C0 Guy 1st Magic LV
_L 0x013972A7 0x0000000C
_C0 Guy Equipment LV
_L 0x01397297 0x0000000C
_L 0x01397299 0x0000000C
_L 0x0139729B 0x0000000C
_L 0x0139729D 0x0000000C
_L 0x0139729F 0x0000000C
_L 0x013972A1 0x0000000C
_L 0x013972A3 0x0000000C
_L 0x013972A5 0x0000000C
_L 0x013972A1 0
_L 0x013972A5 0
_C0 Guy HP 999
_L 0x11397260 0x000003E7 
_C0 Maria 1st Magic LV
_L 0x01397229 0x0000000D
_C0 Maria Equipment LV
_L 0x01397219 0x00000008
_L 0x0139721B 0x00000008
_L 0x0139721D 0x00000008
_L 0x0139721F 0x00000008
_L 0x01397221 0x00000008
_L 0x01397223 0x00000008
_L 0x01397225 0x00000008
_L 0x01397227 0x00000008
_L 0x01397223 0
_L 0x01397227 0
_C0 Maria HP 999
_L 0x113971E2 0x000003E7
_C0 Maria Intelligence
_L 0x013971EB 0x00000023
_C0 No Steps
_L 0x21397348 0x00000000