Game Boy
Batman - Return of the Joker (USA, Europe) Batman - Return of the Joker (USA, Europe) Batman - Return of the Joker (U) [!] Batman - Return of the Joker (1992)(Sunsoft)(US)
Languages Size CRC32 Region Serial
English 128K 5124BBEC USA, Europe DMG-B5-USA, DMG-B5-ESP
by Mezmorize
Game Genie 
FFE-B5B-E69
by Mezmorize
Game Genie 
187-819-6EA
by Mezmorize
Game Genie 
00B-30E-E62