The following are known CWCheat Codes for Knights in the Nightmare on Sony Playstation Portable (PSP).

_S ULUS-10539
_G Knights in the Nightmare [US]
_C0 All Chests. Barrel. Wooden Cases Fully Open(L+O)
_L 0xC00F7B44 0x00A4202B
_L 0xD0000000 0x10002100
_L 0xC00F7B44 0x00002021
_C0 All Mission Open (Maria Article).
_L 0x1043F75A 0x0000002F
_C0 All Mission Open (Mellia Article).
_L 0x1043F75A 0x0000012F
_C0 Damage X Times
_L 0xC009E6DC 0x00108040
_L 0xC009E6E0 0x10800009
_C0 Destruction On All Items(L+UP)
_L 0xC00F7F44 0x14800023
_L 0xD0000000 0x10000110
_L 0xC00F7F44 0x00000000
_C0 Enemy 1 Hit Kill
_L 0xC009B4FC 0x00003021
_C0 EXP MAX
_L 0x2043F748 0x3B9AC9FF
_C0 Experience Value X Times
_L 0xC009D2C4 0x00042840
_C0 Full-Staff-Oriented C.I. Max
_L 0x8044D8F2 0x00860018
_L 0x00000064 0x00000000
_C0 Full-Staff-Oriented L.I. Max
_L 0x8044D8F1 0x00860018
_L 0x00000064 0x00000000
_C0 Full-Staff-Oriented Lv Max
_L 0x8044D8EF 0x00860018
_L 0x00000063 0x00000000
_C0 Full-Staff-Oriented ROY. Max
_L 0x8044D8F3 0x00860018
_L 0x00000064 0x00000000
_C0 Full-Staff-Oriented Vit Max
_L 0x8044D8E6 0x0086000C
_L 0x1000270F 0x00000000
_L 0x8044D8E8 0x0086000C
_L 0x1000270F 0x00000000
_C0 Hits 0
_L 0x0044381C 0x00000000
_C0 Important Props All
_L 0x1044EBB0 0x000000D1
_L 0x8044E602 0x00D10002
_L 0x10000000 0x00000000
_L 0x8044E600 0x00D10002
_L 0x100000A9 0x00000001
_C0 Inf Times
_L 0x504437FA 0x00000002
_L 0x004437F8 0x00000000
_C0 Lifted Restrictions(Sel.+UP)
_L 0xD0000000 0x10000011
_L 0x1044EBB0 0x000000FA
_L 0xD0000000 0x10000041
_L 0x1044EBB0 0x0000011E
_C0 Max Experience Value
_L 0x2043F748 0x3B9AC9FF
_C0 Max Materials
_L 0x8044F408 0x000D0001
_L 0x100003E7 0x00000000
_C0 Max Materials
_L 0x8044F408 0x000D0001
_L 0x100003E7 0x00000000
_C0 Max MP
_L 0x1044FA78 0x000003E7
_C0 Max Weapons
_L 0x1044EBB0 0x000000A8
_L 0x4044E600 0x00A80001
_L 0x000BD201 0x00000001
_C0 Monster HP 1
_L 0xE0020001 0x3044FDB4
_L 0x4044FDB4 0x001E0008
_L 0x00000001 0x00000000
_C0 Time 60.00
_L 0x104437F8 0x00000E10
_C0 Weapon + Important Props All Max
_L 0x1044E8A0 0x000000B2
_L 0x1044E8A4 0x000000B3
_L 0x1044EA74 0x00000179
_L 0x1044EBB0 0x0000011E
_L 0x4044E600 0x00A80001
_L 0x000BD201 0x00000001
_L 0x8044E8C4 0x006C0002
_L 0x100000C4 0x00000001
_L 0x8044E8C8 0x00070002
_L 0x100000B5 0x00000001