The following are known CWCheat Codes for Rengoku: The Tower of Purgatory on Sony Playstation Portable (PSP).

_S ULJM-05006
_G Rengoku: The Tower of Purgatory [JP]
_C0 ALL ITEM
_L 0x002CB3EC 0x000000D9
_L 0x802CABEC 0x00D90008
_L 0x00000001 0x00000001
_C0 ASHI_S1 996
_L 0x202B0DBC 0x44790000
_C0 ATAMA_S1 996
_L 0x202B0ECC 0x44790000
_C0 B_NETU 2
_L 0x202B0EA0 0x40000000
_C0 B_S1 996
_L 0x202B0E44 0x44790000
_C0 BUTSURI DEF
_L 0x102B0D90 0x0000FFFF
_C0 DENSHI DEF
_L 0x102B0D94 0x0000FFFF
_C0 ELIXR
_L 0x202B1074 0x0001869F
_C0 F_NETU 2
_L 0x202B0E18 0x40000000
_C0 H_NETU 2
_L 0x202B0F28 0x40000000
_C0 HP
_L 0x102B105C 0x0000FFFF
_C0 ITEM MOTTIKAZU
_L 0x002CB3EC 0x000000ZZ
_C0 ITEM1 ENERGY
_L 0x102CABF2 0x000045C8
_C0 ITEM1 SOUBIJOUTAI
_L 0x102CABEE 0x0000SSSS
_C0 ITEM1TSUME NEXT+8h
_L 0x002CABEC 0x000000YY
_C0 L_NETU 2
_L 0x202B1038 0x40000000
_C0 L_S1 996
_L 0x202B0FDC 0x44790000
_C0 MAXHP
_L 0x102B1060 0x0000FFFF
_C0 NETSU TAMA L+R(CWC)
_L 0xD0000003 0x10000300
_L 0xD0001000 0x00000000
_L 0x10001000 0x00000001
_L 0xD0001000 0x00000002
_L 0x10001000 0x00000003
_L 0xD0000003 0x30000300
_L 0xD0001000 0x00000001
_L 0x10001000 0x00000002
_L 0xD0001000 0x00000003
_L 0x10001000 0x00000000
_L 0xE0020000 0x00001000
_L 0x2005594C 0x00000000
_L 0x20055848 0x00000000
_L 0xE0020002 0x00001000
_L 0x2005594C 0x45000005
_L 0x20055848 0x460F6301
_C0 NETSU TAMA(CMF)
_L 0xC005594C 0x00000000
_L 0xC0055848 0x00000000
_C0 R_NETU 2
_L 0x202B0FB0 0x40000000 
_C0 R_S1 996
_L 0x202B0F54 0x44790000
_C0 WEAPON SPEED 10
_L 0x400AACCC 0x0041000B
_L 0x41200000 0x00000000
_C0 WEAPON SPEED 100
_L 0x400AACCC 0x0041000B
_L 0x42C80000 0x00000000
_C0 WEAPON SPEED 5
_L 0x400AACCC 0x0041000B
_L 0x40A00000 0x00000000
_C0 WEAPON SPEED 500
_L 0x400AACCC 0x0041000B
_L 0x43FA0000 0x00000000