Game Gear
Mortal Kombat II (World) Mortal Kombat II (World) Mortal Kombat II (U) [!] Mortal Kombat II (1994)(Acclaim - Midway)
Languages Size CRC32 Region Serial
English, Japanese 512K 4B304E0F USA, Europe, Japan T-81107 (JPN), T-81278, T-81278-50
by nolberto82
Game Genie 
C90-9C7-E69
C90-BA8-E69
by nolberto82
Game Genie 
000-3D8-91D
000-3E8-193
7B0-3F8-80E
FE0-408-5D0
880-418-7F0