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

_S ULUS-10290
_G Metal Gear Solid: Portable Ops Plus [US]
_C0 21474836 Stamina
_L 0x2000E720 0x0E200400
_L 0x20001000 0x3C08089A
_L 0x20001004 0x8D095BA0
_L 0x20001008 0x11200018
_L 0x0000100C 0x00000000
_L 0x20001010 0x3C0A7FFF
_L 0x20001014 0x354AFFFF
_L 0x20001018 0xAD2A0BF4
_L 0x20001070 0x03E00008
_L 0x20001080 0x0E215C54
_C0 30000 Life (Host)
_L 0x601A5B90 0x7530
_L 0x00020001 0x00000BEE
_L 0x601A5BA0 0x7530
_L 0x00020001 0x00000BEE
_L 0x601CA510 0x7530
_L 0x00020001 0x00000BEE
_L 0x601CA538 0x7530
_L 0x00020001 0x00000BEE
_L 0x60298D00 0x7530
_L 0x00020001 0x00000BEE
_L 0x601C238C 0x7530
_L 0x00020001 0x00000276
_L 0x602983CC 0x000001C6
_L 0x00020001 0x000001C6
_C0 99 Tickets Blue Team (Host)
_L 0x001C33D8 0x00000063
_C0 99 Tickets Red Team (Host)
_L 0x001C33D4 0x00000063
_C0 999 Ammo Slot 1
_L 0x60298350 0x03E7
_L 0x00000001 0x00000014
_L 0x10000018 0x03E7
_C0 All S3 Recruit
_L 0x201A8EF8 0x05050505
_L 0x201A8EFC 0x05050505
_L 0x201A8F00 0x05050505
_L 0x201A8F04 0x05050505
_L 0x201A8F08 0x05050505
_L 0x101A8F0C 0x0505
_C0 Ammo Modifier
_L 0x601D9CF4 0x00
_L 0x00020001 0x0000818C
_C0 Become Host
_L 0x001C30A0 0x03
_C0 Big Shadow
_L 0x2016EE58 0x40800000
_C0 Blue Team Auto-Win (Host)
_L 0x001C33D8 0x00000094
_C0 Careers of Recruit
_L 0x001A8EC3 0x04
_L 0x001A8EF0 0x00000000
_L 0x201A8EF4 0x64646464
_C0 Change Weapon Shot
_L 0x601854B0 0x0E
_L 0x00020001 0x00005C5C
_L 0x000018EC 0x0E
_L 0x000018AC 0x0E
_L 0x0000184C 0x0E
_L 0x000017DC 0x0E
_L 0x000017EC 0x0E
_C0 Clearer Screen
_L 0x2006BAB8 0x0A200C19
_L 0x20003064 0x3C08089E
_L 0x20003068 0x8D085C64
_L 0x2000306C 0x24091080
_L 0x20003070 0x15090005
_L 0x00003074 0x00000000
_L 0x20003078 0x3C080897
_L 0x200037C 0x3C097700
_L 0x20003080 0x25290000
_L 0x20003084 0xAD092F08
_L 0x20003088 0x24090801
_L 0x2000308C 0x15090005
_L 0x00003090 0x00000000
_L 0x20003094 0x3C080897
_L 0x20003098 0x3C093F81
_L 0x2000309C 0x25290000
_L 0x200030A0 0xAD092F08
_L 0x200030A4 0x03E00008
_C0 Colour Modifier
_L 0x20166114 0x00000000
_C0 Comrades Modifier
_L 0x601771F0 0x000003E8
_L 0x00020001 0x000008AC
_C0 Drop Weapons
_L 0x601CA2AC 0x00000007
_L 0x00000001 0x00000040
_C0 Enable Soldier Hack
_L 0x20034030 0xAE020080
_L 0x10034034 0x00001021
_L 0x20033AC4 0x0A7E8005
_L 0x20033AC8 0x3C1F09FA
_L 0x20033BC0 0x0A7E8000
_L 0x20033BC4 0x24DF00D0
_L 0x20033BC8 0x24020005
_L 0x217A0000 0x90830000
_L 0x217A0004 0x24020005
_L 0x217A0008 0x00623026
_L 0x217A000C 0x0A20CEF5
_L 0x217A0010 0xA3E60000
_L 0x217A0014 0x27FF0000
_L 0x217A0018 0xAFF1FFFC
_L 0x217A001C 0x3C110001
_L 0x217A0020 0x3631863C
_L 0x217A0024 0x34028D29
_L 0x217A0028 0x8FA50000
_L 0x217A002C 0x8FA30004
_L 0x217A0030 0x00A20018
_L 0x217A0034 0x24021DB7
_L 0x217A0038 0x24042706
_L 0x217A003C 0x3C063AB0
_L 0x117A0040 0x00002812
_L 0x217A0044 0x00620018
_L 0x217A0048 0x3C07145A
_L 0x217A004C 0x34C65074
_L 0x217A0050 0x34E76FDA
_L 0x117A0054 0x00001812
_L 0x217A0058 0x00A62826
_L 0x217A005C 0x00671826
_L 0x217A0060 0x00A32826
_L 0x217A0064 0x00858826
_L 0x217A0068 0xA61100DE
_L 0x217A006C 0x8FA40000
_L 0x217A0070 0x241101F4
_L 0x217A0074 0x2402501B
_L 0x217A0078 0x24031133
_L 0x217A007C 0x00820018
_L 0x217A0080 0x8FA20004
_L 0x217A0084 0x3C05EE0E
_L 0x217A0088 0x34A5C41C
_L 0x117A008C 0x00002012
_L 0x217A0090 0x00430018
_L 0x217A0094 0x3C062C49
_L 0x217A0098 0x34C65B4E
_L 0x217A009C 0x00852026
_L 0x117A00A0 0x00001012
_L 0x217A00A4 0x00461026
_L 0x217A00A8 0x00822026
_L 0x217A00AC 0x02248826
_L 0x217A00B0 0xA61100DC
_L 0x217A00B4 0x8FF1FFF8
_L 0x217A00B8 0x56200002
_L 0x217A00BC 0x0A7E8040
_L 0x017A00C0 0x00000000
_L 0x217A00C4 0x8FF1FFFC
_L 0x217A00C8 0x8FA40000
_L 0x217A00CC 0x0A20CEB6
_L 0x217A00D0 0x34028D29
_L 0x217A0100 0x3C0209FA
_L 0x217A0104 0x24420200
_L 0x217A0108 0x84510000
_L 0x217A010C 0xA6110024
_L 0x217A0110 0x84510002
_L 0x217A0114 0xA6110028
_L 0x217A0118 0x8C510004
_L 0x217A011C 0xAE11002C
_L 0x217A0120 0x8C510008
_L 0x217A0124 0xAE110030
_L 0x217A0128 0x8051000C
_L 0x217A012C 0xA2110034
_L 0x217A0130 0x8C510010
_L 0x217A0134 0xAE11003C
_L 0x217A0138 0x8C510014
_L 0x217A013C 0xAE110040
_L 0x217A0140 0x8C510018
_L 0x217A0144 0xAE110044
_L 0x217A0148 0x8451001C
_L 0x217A014C 0xA6110048
_L 0x217A0150 0x8051001E
_L 0x217A0154 0xA211004A
_L 0x217A0158 0x8051000E
_L 0x217A015C 0xA211004B
_L 0x217A0160 0x84510020
_L 0x217A0164 0xA611005C
_L 0x217A0168 0x84510022
_L 0x217A016C 0xA61100E0
_L 0x217A0170 0x0A7E8031
_L 0x017A0174 0x00000000
_L 0x0179FFF8 0x00000000
_L 0x217A0200 0x01F401F4
_L 0x217A0204 0x0001863C
_L 0x217A0208 0x0001863C
_L 0x217A020C 0x00010064
_L 0x217A0210 0x0004A400
_L 0x217A0214 0x05050505
_L 0x217A0218 0x05050505
_L 0x217A021C 0x00050505
_L 0x217A0220 0x9999C350
_C0 Enable Weapon Hack
_L 0x2009C164 0x10630014
_L 0x2009C6D4 0x10630014
_L 0x2009C878 0x10630014
_L 0x2009CE20 0x10630014
_L 0x2009ED78 0x10630014
_C0 Fighting Stance
_L 0x001D98A4 0x00000003
_C0 Fulton
_L 0x20298D88 0x22E08DAA
_C0 Fulton Thru Walls
_L 0x20029D88 0x00029D88
_C0 Health of Recruit
_L 0x101A8EE0 0x01F4
_C0 Infinite Ammo
_L 0x00298D62 0x80
_L 0x00298D6D 0x01
_C0 Infinite Health (Host)
_L 0x0006CE28 0x00
_C0 Infinite Suppressor
_L 0x2009C908 0x0E200D00
_L 0x20003400 0x27BDFFF8
_L 0x20003404 0xAFBF0000
_L 0x20003408 0xAFA20004
_L 0x2000340C 0x3C020000
_L 0x20003410 0x24420000
_L 0x20003414 0x82020026
_L 0x20003418 0x10020002
_L 0x2000341C 0x2402001F
_L 0x20003420 0xA2020026
_L 0x20003424 0x8FA20004
_L 0x20003428 0x8FBF0000
_L 0x2000342C 0x03E00008
_L 0x20003430 0x27BD0008
_C0 Invisibility
_L 0x201775A0 0x3F720000
_C0 Japanese Keyboard
_L 0x601D0980 0x000000F8
_L 0x00020001 0x00001248
_C0 Join Banned Games
_L 0x205319A0 0x0002FBE3
_C0 Mark And Recall Respawn
_L 0x2006B87C 0x0E200C40
_L 0x20003100 0x3C0808AA
_L 0x20003104 0x8D088D00
_L 0x20003108 0x1100000E
_L 0x0000310C 0x00000000
_L 0x20003110 0x3C04089E
_L 0x20003114 0x8C845CAC
_L 0x20003118 0x34051400
_L 0x2000311C 0x34061800
_L 0x20003120 0x3C090880
_L 0x20003124 0x14850009
_L 0x00003128 0x00000000
_L 0x2000312C 0x8D0A0100
_L 0x20003130 0xAD2A3200
_L 0x20003134 0x8D0B0104
_L 0x20003138 0xAD2B3204
_L 0x2000313C 0x8D0C0108
_L 0x20003140 0xAD2C3208
_L 0x20003144 0x10000009
_L 0x00003148 0x00000000
_L 0x2000314C 0x14860007
_L 0x00003150 0x00000000
_L 0x20003154 0x8D2A3200
_L 0x20003158 0xAD0A0F60
_L 0x2000315C 0x8D2B3204
_L 0x20003160 0xAD0B0F64
_L 0x20003164 0x8D2C3208
_L 0x20003168 0xAD0C0F68
_L 0x2000316C 0x10000001
_L 0x00003170 0x00000000
_L 0x20003174 0x03E00008
_L 0x20003178 0x0E256BA6
_C0 Move When Chatting
_L 0x00298D83 0x00
_C0 Multiple TNT Slot 1
_L 0x60298350 0x0040021C
_L 0x00000001 0x00000010
_C0 No Alert
_L 0x001D98A4 0x00
_C0 No Chaff Effect
_L 0x001D9890 0x00
_C0 No Weapon Restrictions
_L 0x201CA2B8 0xFFFFFFFF
_C0 nock Yourself Out
_L 0x20298D6C 0x03000000
_C0 Rapid Fire RPG
_L 0x2000E720 0x0E200400
_L 0x20001030 0x3C08089C
_L 0x20001034 0x8D093124
_L 0x20001038 0x11200004
_L 0x0000103C 0x00000000
_L 0x20001040 0x240A0006
_L 0x20001044 0xA12A18AE
_L 0x20001048 0xA12A17FE
_L 0x2000104C 0x03E00008
_L 0x20001080 0x0E215C54
_C0 Recovery Speed
_L 0x001C4BB4 0x0F
_C0 Red Team Auto-Win (Host)
_L 0x201C33D4 0x01000094
_C0 Rename to Any Names
_L 0x00166758 0x00000000
_L 0x0016675C 0x00000000
_L 0x0016788C 0x00000000
_L 0x00167890 0x00000000
_L 0x00167894 0x00000000
_L 0x00167898 0x00000000
_L 0x0016789C 0x00000000
_L 0x001678A0 0x00000000
_L 0x001678A4 0x00000000
_L 0x001678A8 0x00000000
_L 0x001678AC 0x00000000
_L 0x001678B0 0x00000000
_L 0x001678B4 0x00000000
_L 0x001678B8 0x00000000
_L 0x001678BC 0x00000000
_L 0x001678C0 0x00000000
_L 0x001678C4 0x00000000
_L 0x001678C8 0x00000000
_L 0x001678CC 0x00000000
_L 0x001678D0 0x00000000
_L 0x001678D4 0x00000000
_L 0x001678D8 0x00000000
_L 0x001678DC 0x00000000
_L 0x001678E0 0x00000000
_L 0x001678E4 0x00000000
_L 0x001678E8 0x00000000
_L 0x001678EC 0x00000000
_L 0x001678F0 0x00000000
_L 0x001678F4 0x00000000
_L 0x001678F8 0x00000000
_L 0x001678FC 0x00000000
_L 0x00167900 0x00000000
_L 0x00167904 0x00000000
_L 0x00167908 0x00000000
_L 0x0016790C 0x00000000
_L 0x00167910 0x00000000
_L 0x00167914 0x00000000
_L 0x00167918 0x00000000
_L 0x0016791C 0x00000000
_L 0x00167920 0x00000000
_L 0x00167924 0x00000000
_L 0x00167928 0x00000000
_L 0x0016792C 0x00000000
_L 0x00167930 0x00000000
_L 0x00167934 0x00000000
_L 0x00167938 0x00000000
_L 0x0016793C 0x00000000
_L 0x00167940 0x00000000
_L 0x00167944 0x00000000
_L 0x00167948 0x00000000
_L 0x0016794C 0x00000000
_L 0x00167950 0x00000000
_L 0x00167954 0x00000000
_L 0x00167958 0x00000000
_L 0x0016795C 0x00000000
_L 0x00167960 0x00000000
_L 0x00167964 0x00000000
_L 0x00167968 0x00000000
_L 0x0016796C 0x00000000
_L 0x00167970 0x00000000
_L 0x00167974 0x00000000
_C0 Run/Stalk with Throwing Weapons
_L 0x00298D76 0x0000
_C0 Salute to Kill All (Host)
_L 0x20003000 0x496F6857
_L 0x20003004 0x756F5973
_L 0x20003008 0x3C080880
_L 0x2000300C 0x8D093000
_L 0x20003010 0x8D0A3004
_L 0x20003014 0x3C0B496F
_L 0x20003018 0x356B6857
_L 0x2000301C 0x3C0C756F
_L 0x20003020 0x358C5973
_L 0x20003024 0x152B0003
_L 0x00003028 0x00000000
_L 0x2000302C 0x114C0002
_L 0x00003030 0x00000000
_L 0x20003034 0xAD2BFFFF
_L 0x2000304C 0x3C0808AA
_L 0x20003050 0x8D098D04
_L 0x20003054 0x8D0A8D08
_L 0x20003058 0x8D0B8D0C
_L 0x2000305C 0x8D0C8D10
_L 0x20003060 0x8D0D8D14
_L 0x20003064 0x8D0E8D18
_L 0x20003068 0x240F0000
_L 0x2000306C 0x24180000
_L 0x20003070 0x11200003
_L 0x00003074 0x00000000
_L 0x20003078 0xA12F0BEF
_L 0x2000307C 0xA1380BEE
_L 0x20003080 0x11400003
_L 0x00003084 0x00000000
_L 0x20003088 0xA14F0BEF
_L 0x2000308C 0xA1580BEE
_L 0x20003090 0x11600003
_L 0x00003094 0x00000000
_L 0x2000309C 0xA1780BEE
_L 0x200030A0 0x11800003
_L 0x000030A4 0x00000000
_L 0x200030A8 0xA18F0BEF
_L 0x200030AC 0xA1980BEE
_L 0x200030B0 0x11A00003
_L 0x000030B4 0x00000000
_L 0x200030B8 0xA1AF0BEF
_L 0x200030BC 0xA1B80BEE
_L 0x200030C0 0x11C00003
_L 0x000030C4 0x00000000
_L 0x200030C8 0xA1CF0BEF
_L 0x200030CC 0xA1D80BEE
_L 0x200030D0 0x03E00008
_L 0x2006B87C 0x0E200C00
_L 0x20003038 0x3C04089E
_L 0x2000303C 0x8C845CAC
_L 0x20003040 0x24050801
_L 0x20003044 0x14850022
_L 0x00003048 0x00000000
_L 0x200030D4 0x0E256BA6
_C0 See Thru Walls
_L 0x0161FD28 0x00000000
_L 0x016DFD16 0x0000
_C0 Set HP To 500 (Host)
_L 0x601A5BA0 0x01F401F4
_L 0x00020001 0x00000BEC
_C0 Shadow Size Modifier
_L 0x0016EE58 0x40800000
_C0 Size Modifier
_L 0x201775B0 0x40800000
_C0 Skin of Recruit
_L 0x001A8EC4 0x00
_C0 Sky Walker
_L 0x2016EEBC 0x3FB00000
_C0 SNS of Recruit
_L 0x001A8EB7 0x64
_C0 Stamina of Recruit
_L 0x101A8EE8 0x863C
_L 0x001A8EEA 0x01
_C0 Suicide
_L 0x20298D6C 0x7FFFFFFF
_C0 Super Recovery
_L 0x001C4BB4 0xEB
_C0 Switch to EU Gate
_L 0x2034F7B0 0x53454C55
_L 0x2034F7B4 0x30303130
_L 0x0034F7B8 0x33
_L 0x012BAE68 0x33
_L 0x2124CF20 0xFF333065
_L 0x2124CFFC 0xFF333065
_C0 Switch to JP Gate
_L 0x2034F7B0 0x4D4A4C55
_L 0x2034F7B4 0x36323530
_L 0x0034F7B8 0x31
_L 0x012BAE68 0x31
_L 0x2124CF20 0xFF313065
_L 0x2124CFFC 0xFF313065
_C0 Tap to Kill All (Host)
_L 0x60298D04 0x0000
_L 0x00020001 0x00000BEC
_L 0x60298D08 0x0000
_L 0x00020001 0x00000BEC
_L 0x60298D0C 0x0000
_L 0x00020001 0x00000BEC
_L 0x60298D10 0x0000
_L 0x00020001 0x00000BEC
_L 0x60298D14 0x0000
_L 0x00020001 0x00000BEC
_C0 Tap to KILL PLAYER in slot 1
_L 0x60298D00 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to KILL PLAYER in slot 2
_L 0x60298D04 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to KILL PLAYER in slot 3
_L 0x60298D08 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to KILL PLAYER in slot 4
_L 0x60298D0C 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to KILL PLAYER in slot 5
_L 0x60298D10 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to KILL PLAYER in slot 6
_L 0x60298D14 0x0000
_L 0x00020001 0x00000BEE
_C0 Tap to set health to 1hp slot 2
_L 0x60298D04 0x0001
_L 0x00020001 0x00000BEE
_C0 Tap to set health to 1hp slot 3
_L 0x60298D08 0x0001
_L 0x00020001 0x00000BEE
_C0 Tap to set health to 1hp slot 4
_L 0x60298D0C 0x0001
_L 0x00020001 0x00000BEE
_C0 Tap to set health to 1hp slot 5
_L 0x60298D10 0x0001
_L 0x00020001 0x00000BEE
_C0 Tap to set health to 1hp slot 6
_L 0x60298D14 0x00010BEE
_L 0x00020001 0x00000BEE
_C0 The Retard
_L 0x2016EED4 0x40800000
_C0 Translucent Walls
_L 0x0161FD58 0x02
_C0 Unrestrict Equipment
_L 0x001CA360 0x0C
_L 0x001CA364 0x0D
_L 0x001CA368 0x0E
_L 0x001CA36C 0x0F
_L 0x001CA370 0x10
_L 0x001CA374 0x11
_C0 Unrestrict Stealth
_L 0x001CA38C 0x1E
_C0 Walk Thru Walls
_L 0x601A5BA0 0x30
_L 0x00000001 0x000000F7
_C0 Weapon and Item Hack Slot 1
_L 0x60298350 0x02
_L 0x00000001 0x00000000
_L 0x00000004 0x00
_L 0x20000008 0x65B02BB7
_L 0x0000000C 0x00000000
_L 0x10000010 0x8001
_L 0x00000014 0xFF
_L 0x00000018 0xFF
_L 0x0000001C 0xFF
_L 0x00000020 0xFF
_C0 Weapons of Recruit
_L 0x101A8F0E 0x2326
_L 0x001A8F10 0x0000
_C0 WF/F/MC/SI/MP ON
_L 0x201C4BB0 0x07010102