Wily's Revenge — the first entry in the Mega Man World series and the first Mega Man game ever released for the original Game Boy — brought Capcom's iconic blue bomber to Nintendo's handheld in 1991. It was a landmark moment for portable gaming, blending Robot Masters from Mega Man 1 and 2 with a brand new final boss and a gameplay experience crafted specifically for the Game Boy's screen and hardware. Custom cartridge, plug and play. Compatible: GBC, GBA, GBA SP.