The following are known CWCheat Codes for Metal Gear Solid: Peace Walker on Sony Playstation Portable (PSP).

_S NPJH-50045
_G Metal Gear Solid: Peace Walker (PlayStation Store) [JP]
_C0 6 Recruits
_L 0xE0020009 0x0082B648
_L 0xE0010006 0x0082B650
_L 0x2082B57C 0x24170006
_C0 6 Recruits OFF
_L 0xE0020009 0x0082B648
_L 0xE0010006 0x0082B650
_L 0x2082B57C 0x1AE0005D
_C0 All AI Chips
_L 0x20112604 0x00002812
_L 0x20112608 0xA0A20000
_C0 All AI Chips
_L 0x20112604 0x00002812
_L 0x20112608 0xA0A20000
_C0 All AI Chips
_L 0x20112604 0x00002812
_L 0x20112608 0xA0A20000
_C0 All AI Chips/ restore
_L 0x20112604 0x0E2D08C8
_L 0x20112608 0x00002812
_C0 All AI Chips/ restore
_L 0x20112604 0x0E2D08C8
_L 0x20112608 0x00002812
_C0 All AI Chips/ restore
_L 0x20112604 0x0E2D08C8
_L 0x20112608 0x00002812
_C0 All Codenames
_L 0x2030CEBC 0x24020017
_L 0x2030CEC0 0xA062AD88
_C0 All Codenames/ restore
_L 0x2030CEBC 0x8062AD88
_L 0x2030CEC0 0x7C431080
_C0 All Items
_L 0x20048C48 0x00000000
_L 0x20048C4C 0x24020003
_L 0x20048C50 0xAC820004
_C0 ALL ITEMS WERE DEVELOPED
_L 0x20048C48 0x00000000
_L 0x20048C4C 0x24020003
_L 0x20047C50 0xAC820004
_C0 ALL ITEMS WERE DEVELOPED CODE OFF
_L 0x20048C48 0x10800002
_L 0x20048C4C 0x00001021
_L 0x20047C50 0x8C820004
_C0 All Items/ restore
_L 0x20048C48 0x10800002
_L 0x20048C4C 0x00001021
_L 0x20048C50 0x8C820004
_C0 All most soldiers Status off
_L 0x2089407C 0x0E20C4CE
_C0 All Trophies
_L 0x2030D090 0xA065ADA1
_C0 All Trophies/ restore
_L 0x2030D090 0x1040FFEE
_C0 All Weapons
_L 0x20047884 0x00000000
_L 0x20047888 0x24020003
_L 0x2004788C 0xAC820004
_C0 ALL WEAPONS WERE DEVELOPED
_L 0x20047884 0x00000000
_L 0x20047888 0x24020003
_L 0x2004788C 0xAC820004
_C0 ALL WEAPONS WERE DEVELOPED CODE OFF
_L 0x20047884 0x10800002
_L 0x20047888 0x00001021
_L 0x2004788C 0x8C820004
_C0 All Weapons/ restore
_L 0x20047884 0x10800002
_L 0x20047888 0x00001021
_L 0x2004788C 0x8C820004
_C0 Camouflage
_L 0x20137710 0x240203E8
_C0 Camouflage
_L 0x20137710 0x240203E8
_C0 camouflage rate of 100% Off
_L 0x20137710 0x2402FC18
_C0 camouflage rate of 100% On
_L 0x20137710 0x240203E8
_C0 Camouflage/ restore
_L 0x20137710 0x2402FC18
_C0 Camouflage/ restore
_L 0x20137710 0x2402FC18
_C0 damege 0
_L 0x2010d8f0 0x24050000
_C0 damege 0/restore
_L 0x2010d8f0 0x0064280a
_C0 DEVELOP AT ONCE
_L 0xE0080004 0x00845F0C
_L 0xE0070004 0x00845F18
_L 0x20840D98 0x24050002
_L 0x20845F10 0x8C620004
_L 0x20845F14 0x5053010F
_L 0xD0000002 0x10001000
_L 0x2040D98 0x24050003
_L 0x20845F10 0x24100003
_L 0x20845F14 0x5000010F
_C0 Free Ammo
_L 0x200FF92C 0x24140000
_C0 Free Ammo
_L 0x200FF92C 0x24140000
_C0 Free Ammo/ restore
_L 0x200FF92C 0x7C05A620
_C0 Free Ammo/ restore
_L 0x200FF92C 0x7C05A620
_C0 Free Items
_L 0x200FBD4C 0x24130000
_C0 Free Items/ restore
_L 0x200FBD4C 0x7C069E20
_C0 Fulton Female
_L 0x200417B8 0x0E20BC27
_C0 Fulton Female OFF
_L 0x200417B8 0x0E20BC12
_C0 GMP MAX
_L 0x1119978E 0x0009614
_C0 Hero Point MAX
_L 0x21364674 0x05F5E0FF
_C0 HP MAX
_L 0x2000100C 0xAC990038
_L 0x20001010 0x2419270F
_L 0x40001014 0x00030001
_L 0xA4990042 0x00000002
_L 0x40001020 0x00030001
_L 0xA499004A 0x00000002
_C0 Inf Ammo
_L 0xC00521A4 0x24020000 
_C0 Inf Life
_L 0xF03C3C04 0x25AD0302
_L 0xB8B0CE92 0x9753B73E
_L 0x034397F9 0x2F24AD32
_L 0x0A3E084B 0x09E80000
_L 0x0A3E0822 0x0A080000
_C0 infinite number of shells Off
_L 0x200FF92C 0x7C05A620
_C0 infinite number of shells On
_L 0x200FF92C 0x24140000
_C0 Instant Development
_L 0xE0080004 0x00845F0C
_L 0xE0070004 0x00845F18
_L 0x20840D98 0x24050002
_L 0x20845F10 0x8C620004
_L 0x20845F14 0x5053010F
_L 0xD0000002 0x10001000
_L 0x20840D98 0x24050003
_L 0x20845F10 0x24100003
_L 0x20845F14 0x5000010F
_C0 Instant Research
_L 0xE0080004 0x00845F0C
_L 0xE0070004 0x00845F18
_L 0x20840D98 0x24050002
_L 0x20845F10 0x8C620004
_L 0x20845F14 0x5053010F
_L 0xD0000002 0x10001000
_L 0x20840D98 0x24050003
_L 0x20845F10 0x24100003
_L 0x20845F14 0x5000010F
_C0 ITEM NOT DEC
_L 0x200FBD4C 0x24130000
_C0 ITEM NOT DEC CODE OFF
_L 0x200FBD4C 0x7C069E20
_C0 kabemuke L
_L 0xD0000001 0x10000100
_L 0x603107B0 0x2A3EF660
_L 0x00020001 0x00000224
_L 0xD0000001 0x10000200
_L 0x603BC964 0x2A3F0660
_L 0x00050001 0x000007F4
_C0 Perfect Invisible 1 / 2
_L 0x814B1540 0x00040004
_L 0x000000FF 0x00000000
_L 0x2131B140 0x000000FF
_C0 perfect stealth 2 / 2
_L 0x814D8CE0 0x00040004
_L 0x000000FF 0x00000000
_L 0x2131B141 0x000000FF
_C0 props used unabated
_L 0x200FBD4C 0x24130000
_C0 props used unabated restore
_L 0x200FBD4C 0x7C069E20
_C0 rail gun max atacc
_L 0x2006042c 0x10000006
_L 0x20060430 0x24040c00
_C0 Recruit Sex Female
_L 0x20041358 0x2408FFFE
_L 0x20041370 0x02682824
_C0 Recruit Sex OFF
_L 0x20041358 0x00000000
_L 0x20041370 0x02602821
_C0 Soliton radar OFF
_L 0x2024ee38 0x1440028a
_C0 Soliton radar ON
_L 0x2024ee38 0x1000028a
_C0 Speed Mult./restore
_L 0x2013513C 0x00000000
_L 0x20135144 0x00C08021
_L 0x20135148 0x4614003C
_L 0x2013514C 0x00000000
_L 0x201351A8 0x2600A306
_C0 Speed Mult1.5
_L 0x2013513C 0x00C08021
_L 0x20135144 0x4614003C
_L 0x20135148 0x3C033FC0
_L 0x2013514C 0x44836000
_L 0x201351A8 0x46146302
_C0 Speed Mult10
_L 0x2013513C 0x00C08021
_L 0x20135144 0x4614003C
_L 0x20135148 0x3C034120
_L 0x2013514C 0x44836000
_L 0x201351A8 0x46146302
_C0 speed up
_L 0x00485958 0x00000410
_C0 Status largest triangle to see the soldiers only come into effect in detail
_L 0x20001000 0x27BDFFFC
_L 0x20001004 0xAFB90000
_L 0x20001008 0x3C190002
_L 0x2000100C 0x2739869F
_L 0x20001010 0xAC990038
_L 0x20001014 0x2419270F
_L 0x40001018 0x00030001
_L 0xA4990042 0x00000002
_L 0x40001024 0x00030001
_L 0xA499004A 0x00000002
_L 0x20001030 0x241904E2
_L 0x40001034 0x00090001
_L 0xA4990052 0x00000002
_L 0x20001058 0x241903E7
_L 0x4000105C 0x00080001
_L 0xA4990064 0x00000002
_L 0x2000107C 0xA4800076
_L 0x20001080 0xA480007A
_L 0x20001084 0xA480007C
_L 0x20001088 0xA4800080
_L 0x2000108C 0xA4990082
_L 0x20001090 0x8FB90000
_L 0x20001094 0x0A20C4CE
_L 0x20001098 0x27BD0004
_L 0x2089407C 0x0E200400
_C0 Status Max
_L 0x20001000 0x27BDFFFC
_L 0x20001004 0xAFB90000
_L 0x20001008 0x241934B6
_L 0x2000100C 0xAC990038
_L 0x20001010 0x2419270F
_L 0x40001014 0x00030001
_L 0xA4990042 0x00000002
_L 0x40001020 0x00030001
_L 0xA499004A 0x00000002
_L 0x2000102C 0x241904E2
_L 0x40001030 0x00090001
_L 0xA4990052 0x00000002
_L 0x20001054 0x241903E7
_L 0x40001058 0x00080001
_L 0xA4990064 0x00000002
_L 0x20001078 0xA4800076
_L 0x2000107C 0xA480007A
_L 0x20001080 0xA480007C
_L 0x20001084 0xA4990082
_L 0x20001088 0x8FB90000
_L 0x2000108C 0x0A20C4CE
_L 0x20001090 0x27BD0004
_L 0x2089407C 0x0E200400
_C0 Status Max
_L 0x20001000 0x27BDFFFC
_L 0x20001004 0xAFB90000
_L 0x20001008 0x241934B6
_L 0x2000100C 0xAC990038
_L 0x20001010 0x2419270F
_L 0x40001014 0x00030001
_L 0xA4990042 0x00000002
_L 0x40001020 0x00030001
_L 0xA499004A 0x00000002
_L 0x2000102C 0x241904E2
_L 0x40001030 0x00090001
_L 0xA4990052 0x00000002
_L 0x20001054 0x241903E7
_L 0x40001058 0x00080001
_L 0xA4990064 0x00000002
_L 0x20001078 0xA4800076
_L 0x2000107C 0xA480007A
_L 0x20001080 0xA480007C
_L 0x20001084 0xA4990082
_L 0x20001088 0x8FB90000
_L 0x2000108C 0x0A20C4CE
_L 0x20001090 0x27BD0004
_L 0x2089407C 0x0E200400
_C0 Status Max/ restore
_L 0x2089407C 0x0E20C4CE
_C0 Status Max/ restore
_L 0x2089407C 0x0E20C4CE
_C0 sutan rod mugen
_L 0x2052e570 0x00006410
_C0 Unlimited Recruits
_L 0xE0020009 0x0082B648
_L 0xE0010006 0x0082B650
_L 0x2082B64C 0x00000000
_C0 Unlimited Recruits/ restore
_L 0xE0020009 0x0082B648
_L 0xE0010006 0x0082B650
_L 0x2082B64C 0x1040FFF1
_C0 Weapon Exp. Mult.
_L 0x20052914 0x00031140
_C0 Weapon Exp. Mult./ restore
_L 0x20052914 0x00601021
_C0 ZEKE Parts 1/2
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012748
_L 0x6041F1E0 0x00640101
_L 0x00020001 0x0001274C
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012754
_L 0x6041F1E0 0x00640201
_L 0x00020001 0x00012758
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012760
_L 0x6041F1E0 0x00640301
_L 0x00020001 0x00012764
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x0001276C
_L 0x6041F1E0 0x00640401
_L 0x00020001 0x00012770
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012778
_L 0x6041F1E0 0x00640501
_L 0x00020001 0x0001277C
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012784
_L 0x6041F1E0 0x00640102
_L 0x00020001 0x00012788
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x00012790
_L 0x6041F1E0 0x00640202
_L 0x00020001 0x00012794
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x0001279C
_C0 ZEKE Parts 2/2
_L 0x6041F1E0 0x00640103
_L 0x00020001 0x000127A0
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x000127A8
_L 0x6041F1E0 0x00640104
_L 0x00020001 0x000127AC
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x000127B4
_L 0x6041F1E0 0x00640105
_L 0x00020001 0x000127B8
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x000127C0
_L 0x6041F1E0 0x00640205
_L 0x00020001 0x000127C4
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x000127CC
_L 0x6041F1E0 0x00640305
_L 0x00020001 0x000127D0
_L 0x6041F1E0 0x00010000
_L 0x00020001 0x000127D8
_L 0x6041F1E0 0x00640405
_L 0x00020001 0x000127DC
_L 0x6041F1E0 0x0000000D
_L 0x00020001 0x000125B0