Mega Man 2 II GB Video Game Cartridge Game Boy 1991Gameboy non oem reproduction Mega Man 2 video game cartridge. Game cartridge comes with a plastic protective case just like the picture shows. Mega Man II (known as Rockman World 2 in Japan) is a 2D action platformer released for the Game Boy in late 1991 and early 1992. It is the second handheld entry in the series and is notable for being the only title in the Game Boy line not developed by Minakuchi Engineering, instead being outsourced to Thinking