Uploaded December 2023 | Updated September 2026, 3 weeks ago

---

After learning how to hack Sonic 1 for the Master System, I decided to put Mario from SMB1 into the game.

I was inspired to make this after porting BWGLite's SMB1 Mario sprite hack to Sonic 1 Forever.

There are two different patches:
A Quality of Life (QoL) patch which disables Bridge Zone Act 2's Auto Scroll, Jungle Zone Act 2's Screen Lock, and Sky Base Zone Act 2's Screen Wave. It also slows down the lightning flash in Sky Base Zone Act 1.

And a Vanilla patch with none of the QoL changes.

Both patches are compatible with the FM Music Mod! (Patch FM Mod after SMB1 Mario)

Here is the hack, enjoy!:
drive.google.com/file/d/19aEnscw9Y_ojOvQRJuIwQ29fNpDoJlQm/view?usp=sharing

Sprites by BWGLite and The Spriters Resource
Ported using STH1EDWV by Maxim:
github.com/maxim-zhao/STH1EDWV


Footage from a Sega Nomad modded with SMS compatibility.
Recorded through OBS.