The following are known CWCheat Codes for Mercury Meltdown on Sony Playstation Portable (PSP).

Mercury Meltdown (PlayStation Store) (Demo) [EU] – HBF265212D

_S HBF265212D
_G Mercury Meltdown (PlayStation Store) (Demo) [EU]
_C0 Infinite Time
_L 0x2061B180 0x4415E000
_L 0x2061B184 0x4415E000

Mercury Meltdown (PlayStation Store) [EU] – ULES-00466

_S ULES-00466
_G Mercury Meltdown [EU]
_C0 Infinite Time
_L 0xD3000000 0x089817C4
_L 0xF89817C0 0x00000004
_L 0xD2000000 0x00000000
_C0 Unlimited Time (100min)
_L 0x101817C2 0x000045BC
_L 0x101817C0 0x00000000