Mega Man on the Game Gear is a mix of stages and bosses based on Mega Man 4 and Mega Man 5 of the NES. However, it has only 8 stages in total: 4 Robot Masters, 2 Cossack Castle stages and 2 Wily Castle stages.

As the screenshot shows, the game has some very large movement glitches which Baddap1 exploits to beat the game very quickly.