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Super Mario in Sonic the Hedgehog 1

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Super Mario in Sonic the Hedgehog 1 Overview

SEGA Genesis
Platformer
ROM Hack
5· 0 votes

Unofficial ROM hack. The notes below come from community sources and have not been verified against the patch itself, so levels, mechanics and features may differ from what is described.

Super Mario in Sonic the Hedgehog 1 is a ROM hack for the SEGA Genesis that mashes up two of the biggest mascots of the 16-bit era. It's not an official release - this is a fan-made modification that replaces Sonic's character model and some sprites with Mario from the Super Mario series. The exact creator and release date aren't widely documented, but it's been floating around online ROM sites for years. If you remember the endless debates about Mario vs. Sonic back in the day, this hack feels like a cheeky answer to that rivalry, dropping Mario into Sonic's side-scrolling world.

GAME INFO

Platform: SEGA Genesis
Genre: Platformer
Players: 1
Based on: Sonic the Hedgehog

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How to play Super Mario in Sonic the Hedgehog 1 online

Getting Started

When you boot up the hack, you'll see the familiar Sonic 1 title screen - no changes there. Press Start (Enter) to begin. Mario appears at the start of Green Hill Zone, but he moves exactly like Sonic: he can roll into a spin, jump on enemies, and collect rings. The core loop is the same as the original Sonic the Hedgehog: race through three acts per zone, defeat Dr. Robotnik at the end of each, and try to reach the Special Stages by collecting 50 rings and jumping into a giant ring at the end of Act 1.

The hack mainly swaps the player sprite and some sound effects, so all the original level layouts, enemy patterns, and obstacles remain intact. If you've played Sonic 1 before, you know what to do. The only twist is seeing Mario's stubby legs run through loops and bounce off Buzz Bombers. Keep an eye on rings for health and watch out for spikes - just like in Sonic, a hit without rings means death. There's no save feature, so you'll need to finish in one sitting.

CONTROLS

Controls

Arrow Keys: D-Pad / Movement
X: A button
S: B button
Z: C button
A: X button (6-button pad)
Q: Y button (6-button pad)
E: Z button (6-button pad)
Enter: Start / Mode

Super Mario in Sonic the Hedgehog 1 FAQ

Who developed Super Mario in Sonic the Hedgehog 1?

The creator of this ROM hack isn't widely documented. It's a fan-made project that circulated online without a clear author or development team attached.

Is Super Mario in Sonic the Hedgehog 1 exclusive to SEGA Genesis or did it appear on other systems?

This hack exists only on the SEGA Genesis as a modification of the original Sonic the Hedgehog 1 ROM. It has not been ported to other platforms.

Can players save progress in Super Mario in Sonic the Hedgehog 1?

No. The original Sonic the Hedgehog used a password system for level select, and this hack retains that same limitation. Players must complete the game in a single session.