Sonic 3 Hadouken

Sonic 3 Hadouken is a ROM hack of the classic SEGA Genesis platformer Sonic the Hedgehog 3. It was created by an unknown fan developer and appears to be distributed for free online. As a modded version of the original 1994 title, it grafts a special move from the Street Fighter series into Sonic's repertoire, letting players unleash a projectile attack reminiscent of Ryu's Hadouken. This is not an official Sega release but a community-made alteration often shared on retro gaming archive sites like retrogames.cc.

The core gameplay is nearly identical to Sonic 3: you guide Sonic (or Tails) through vibrant side-scrolling levels, collecting rings, defeating Badniks, and reaching the goal at the end of each act. The main addition is the ability to perform a Hadouken by pressing a specific button combination - likely a variation of the standard attack input. This changes how you handle enemies and obstacles, offering a new tactical layer to the familiar level design. The physics, loop-de-loops, and zone structure remain unchanged from the base game.

If you already know Sonic 3 inside and out, Sonic 3 Hadouken is a fun and novel way to revisit those stages with an unexpected twist. It is a simple, single-change hack rather than a full overhaul, so do not expect new levels or story elements. For retro enthusiasts who enjoy seeing classic games reimagined through minor but satisfying gameplay tweaks, this is a neat curiosity. It holds up best as a quick, playful session rather than a long-term substitute for the original.