Mega Man in Super Mario World: public beta of the SNES ROM hack is open

On 5 November 2026 the Retro-Replay site opened a public beta for Mega Man in Super Mario World, a Super Nintendo ROM hack of Super Mario World by dmb062082. The project blends the original game's levels and Koopaling fights with Mega Man gameplay: Robot Masters, Mega Man 7 sprites and special weapons. It is an unofficial fan project and ships no ROM.

The project page now lists version 0.1.2 Beta 1, dated 6 November. It reuses eight of Super Mario World's toughest stages. The first seven end with a Koopaling followed by a Mega Man 7 Robot Master; beating a pair earns a new weapon. Bowser gets two final fights, based on his Super Mario Bros. 3 and Super Mario World versions.

Controls and setup

Controls: B jumps, Y fires and charges, L runs, R calls Rush Coil, Down ducks, Down+B slides and Start opens the equipment menu. To play you need a clean, unmodified, unheadered Super Mario World (USA) ROM of 524,288 bytes (CRC32 B19ED489). No Mega Man 7 ROM is needed.

Steps: 1) check your ROM's CRC32, since a wrong checksum blocks the patch; 2) download the BPS patch from the project page; 3) apply it to a new output file with Floating IPS, or use the site's online patcher, which works locally in your browser; 4) run the result in your emulator or flash cart and start a new file, without loading an old save. Bugs go in the testers thread, with the version, emulator, stage and weapon involved.

Worth noting: the author explicitly asks that the hack not be uploaded to romhacking.net, and that people link to the Retro-Replay page instead. Rights to Super Mario World belong to Nintendo, and those to Mega Man 7 to Capcom.

Source: Retro-Replay