Mega Man is an action-platform video game that was developed by Stephen Rozner, an ex-employee of Capcom U.S.A, and published in 1990 by Hi Tech Expressions for DOS systems.
Rozner was unable to access Capcom's asset files and assembly code, so he decided to start from nothing and make "whatever he wanted" because he was a fan of the original NES Mega Man games.
He also panned the gameplay, which he called "dull" and "cheap", and said the level design makes it "drag", and that "everything hits too hard and there’s little mercy invincibility in-between", leading to quick deaths.
Foster added the game's enemies are too short to shoot and that narrow passages with low ceilings make jumping difficult.
[9] Stephen Rozner and his brother William Rozer developed a sequel titled Mega Man 3: The Robots Are Revolting,[a] which was released in 1992 on DOS.