The Sega Game Gear version of Mega Man brings the iconic Blue Bomber to the handheld. It likely features similar gameplay to the NES titles in the series, focusing on platforming, shooting, and collecting power-ups. The adaptation would have involved scaling down the graphics and possibly streamlining the game design to suit the Game Gear's technical capabilities.  Considering Capcom's development of the main series, they were likely involved or oversaw the Game Gear port, though details are hard to confirm definitively. The game's release in both the USA and Europe shows its significant popularity.

Mega Man (USA, Europe)

Mappy (Japan)