The following are known CWCheat Codes for Harry Potter and the Half-Blood Prince on Sony Playstation Portable (PSP).

_S ULES-01180
_G Harry Potter and the Half-Blood Prince [EU]
_C0 Max Quidditch Points
_C0 Unlock Everything
_L 0x2034D1BC 0x00630063
_L 0x2034D1C0 0x00630063
_L 0x2034D1C4 0x00630063
_L 0x2034D1C8 0x00630063
_L 0x2034D1CC 0x00630063
_L 0x2034D1D0 0x00630063
_L 0x2034D1D4 0x00630063
_L 0x2034D1D8 0x00630063
_L 0x0034D1DC 0x00000001
_L 0x2034D1E0 0x00010001
_L 0x0034D1E4 0x00000001
_L 0x2034D1E8 0x00010001
_L 0x2034D1EC 0x00010000
_L 0x2034D21C 0x01010001
_L 0x2034D220 0x01010101
_L 0x2034D224 0x01010101
_L 0x2034D228 0x01010101
_L 0x2034D22C 0x01010101
_L 0x2034D230 0x01010101
_L 0x2034D234 0x01000101