This new homebrew port puts Super Mario Bros on Sega Master System

There are few things in retro gaming more instantly fascinating than seeing a character show up where they absolutely do not belong. Mario on a Sega Master System is one of those sights. It feels strange, slightly rebellious, and completely irresistible. That is what makes Super Mario Bros port such a fun and surprising homebrew project. Created by LackofTrack and released through SMS Power, it takes one of the most iconic Nintendo games ever made and imagines it running on Sega’s 8-bit hardware. For anyone who grew up knowing the Master System and NES as sworn playground rivals, that idea alone is enough to make you stop and pay attention. What makes the project more interesting is that it is not just a quick novelty or a joke built around the shock of seeing Mario on the wrong machine. This is a genuine proof-of-concept port with clear ambition behind it. The goal is to recreate the feel of the original Super Mario Bros. as closely as possible on Master System hardware, using the original game’s disassembly as a major reference point. At the moment, only World 1-1 is playable, so this is still very much an early build rather than a full game. Even so, that first level already says a lot. It shows that this is a serious technical experiment, and a very charming one at that.

Part of the appeal comes from the history behind it. Back in the 8-bit era, Nintendo and Sega were not just competitors, they were opposites in the minds of fans. If the NES was Mario’s kingdom, then the Master System was firmly Sega territory. Decades later, homebrew developers are free to ignore those old boundaries and do the kind of thing that would have felt impossible at the time. That freedom gives a project like this its spark. It is not trying to rewrite history. It is playing with it, asking a wonderfully nerdy question: what would happen if Super Mario Bros. had somehow landed on Sega hardware after all? The answer, based on this proof of concept, is that it feels surprisingly at home there. That is part of the magic. The familiar structure of Mario’s first level is still there, but the fact that it is running on Master System hardware changes the mood entirely. It becomes something slightly uncanny in the best way. You are not just replaying an old classic. You are seeing it through a different 8-bit lens. That small shift is enough to make something deeply familiar feel fresh again, especially for players who love the technical quirks and personality of Sega’s older systems.

There is also something very likable about the honesty of the project. It is openly presented as unfinished, with minor bugs still in place and more work still to come. Recent updates have already improved it by reducing loading times, fixing a sprite issue with Big Mario’s jump, and removing a softlock tied to the end of World 1-1. Those may sound like small details, but they show that this is moving beyond a simple experiment and into the territory of a carefully maintained homebrew release. It is still early, but it is alive, and that matters. Maybe the most exciting detail for Master System fans is the mention of future FM sound support. That one little promise hints at the possibility of hearing Mario’s adventure with a very different flavor from the NES original. It would not just be a technical curiosity at that point. It would start to feel like a true alternate-universe version of Super Mario Bros., as though some long-lost Sega adaptation had finally surfaced after being hidden away for decades. That is ultimately why this project stands out. It is not important because it replaces the original Super Mario Bros., and it is not remarkable just because Mario is appearing on rival hardware. It is memorable because it captures what makes the homebrew scene so enjoyable in the first place: curiosity, technical skill, affection for old machines, and the willingness to create something purely because it is interesting. Super Mario Bros. SMS Port POC feels like a love letter to 8-bit gaming history, but it also feels playful, almost mischievous, like a tiny act of retro rebellion.

Spread the love

MORE AMIGA & RETRO NEWS