The following are known CWCheat Codes for Final Fantasy IV: The Complete Collection on Sony Playstation Portable (PSP).

_S ULES-01521
_G Final Fantasy IV: Complete Collection [EU]
_C0 Antidote 99
_L 0x00794410 0x00000063
_C0 Battle Hits 99
_L 0x004486B3 0x00000063
_C0 Broadsword 99
_L 0x007944E4 0x00000063
_C0 Bronze Armor 99
_L 0x007944F2 0x00000063
_C0 Bronze Helm 99
_L 0x007944EE 0x00000063
_C0 Bronze Shield 99
_L 0x007944EC 0x00000063
_C0 Ceodore Prince HP 113/113
_L 0x00DD96E0 0X00000071
_C0 Eye Drops 99
_L 0x0079440E 0x00000063
_C0 Gil 999
_L 0x10793D8c 0x000003E7
_C0 Gold Needle 99
_L 0x00794404 0x00000063
_C0 Longsword 99
_L 0x007944E6 0x00000063
_C0 Maiden's Kiss 99
_L 0x00794406 0x00000063
_C0 Phoenix Down 99
_L 0x00794402 0x00000063
_C0 Potion 99
_L 0x007943F6 0x00000063
_C0 Tent 99
_L 0x0079441E 0x00000063