The game has been released as a free download on December 17, 2012. Initially developed as a fan game by Hui, Capcom funded the project and provided creative direction and QA support. Street Fighter X Mega Man is a project developed by Zong Hui, combining Mega Man's gameplay with characters and settings from the Street Fighter series.
Each game in the Game Boy series, excluding Mega Man V, features four bosses from its corresponding NES version and four bosses from the succeeding NES game in the series. All Game Boy titles have an original plot. The Game Boy versions of Mega Man were originally released in Japan under the Rockman World title.