The following are known CWCheat Codes for Medal of Honor Heroes on Sony Playstation Portable (PSP).

_S ULUS-10141
_G Medal of Honor Heroes (Greatest Hits) [US]
_C0 1337 Scope
_L 0x20504E00 0xFFFFFFFF
_L 0x20504E10 0xFFFFFFFF
_L 0x20504E34 0x00000000
_C0 9/Inf. Medkit
_L 0x2116AA00 00x2116AA0
_L 00x2116AA0 00x2116AA0
_C0 9/Inf. Medkit
_L 0x2116AA00 0x00000009
_C0 9/Inf. Medkit
_L 0x2116AA00 0x00000009
_C0 99/Inf. Machine Gun Bullets
_L 0x01147E0E 0x00000063
_C0 all codes
_L 0x2116AA00 0x00000009
_C0 All Codes
_L 0x2116AA00 0x00000009
_C0 Black screen during play
_L 0x201079F8 0x00000000
_C0 Bullet Clipping (Offline)
_L 0x201CB6D4 0x03E00008
_C0 Chipmunk voices
_L 0x203B1324 0x3C044000
_C0 Confusion
_L 0x20690644 0x3FC00000
_C0 Crackhead (real)
_L 0x20173E80 0x3C044100
_C0 Discovered 24 Cheat
_L 0x2116AA00 0x00000009
_C0 Enemies cant move
_L 0x20025624 0x03E00008
_C0 Everyone Invisible
_L 0x203F7408 0x03E00008
_C0 Fisheye view
_L 0x20339940 0x3C043E40
_C0 Flash
_L 0x10169B08 0x00003D88
_C0 Flash Run
_L 0x20169838 0x3C044050
_C0 FUCKING LOUD
_L 0x2050F4B0 0x45000000
_C0 Full Screen Scope
_L 0x20504E28 0xFFFFFFFF
_C0 Inf Ammo Rapid Fire 
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_C0 Inf Health
_L 0x0179988A 0x0000006A
_C0 Inf Machine Gun AMMO CO STAGE
_L 0x011EAB5E 0x00000063
_C0 Inf Machine Gun AMMO HT STAGE
_L 0x0116C8AE 0x00000063
_C0 Inf Machine Gun AMMO LTW STAGE
_L 0x0115DA2E 0x00000063
_C0 Inf Machine Gun AMMO TB STAGE
_L 0x0118AA5E 0x00000063
_C0 Inf Medkit CB STAGE
_L 0x011905E0 0x00000003
_C0 Inf Medkit CO STAGE
_L 0x0120EBE0 0x00000003
_C0 Inf Medkit HT STAGE
_L 0x011909F0 0x00000003
_C0 Inf Medkit TB STAGE
_L 0x011ADB30 0x00000003
_C0 Inf Medkit VL STAGE
_L 0x0120CAA0 0x00000003
_C0 Inf PISTOL AMMO CB STAGE
_L 0x0116D14E 0x00000063
_C0 Inf PISTOL AMMO CO STAGE
_L 0x011EAF8E 0x00000063
_C0 Inf PISTOL AMMO HT STAGE
_L 0x0116CCDE 0x00000063
_C0 Inf PISTOL AMMO LTW STAGE
_L 0x0115DE5E 0x00000063
_C0 Inf PISTOL AMMO TB STAGE
_L 0x0118AE8E 0x00000063
_C0 Inf PISTOL AMMO VL STAGE
_L 0x011E8C9E 0x00000063
_C0 Inf RIFLE AMMO CB STAGE
_L 0x0116CD1E 0x00000063
_C0 Inf RIFLE AMMO VL STAGE
_L 0x011E886E 0x00000063
_C0 JUMBO MODE
_L 0x2006F864 0x3C043FA0
_L 0x2006F960 0x3C043F90
_C0 jump and fast running
_L 0x10157C9C 0x00003FA0
_C0 jump and fast running
_L 0x10157C9C 0x00003FA0
_L 0x10169B08 0x00003D88
_L 0x201073C8 0x00000000
_L 0x20107348 0x00000000
_C0 MK3 - Max/Inf. Heath P1
_L 0x203F8DC8 0x003000A6
_C0 no death animation
_L 0x201679AC 0x03E00008
_L 0x201679B0 0x00000000
_C0 No Fall Damage
_L 0x201073C8 0x00000000
_L 0x20107348 0x00000000
_C0 Seethrough walls (jokered)
_L 0xD0000000 0x10000120
_L 0x20178F0C 0x03E00008
_L 0xD0000000 0x10000180
_L 0x20178F0C 0x27BDFF90
_C0 Super Jump
_L 0x10157C9C 0x00003FA0