Sonic 2 Rainbow Edition

Sonic 2 Rainbow Edition is a fan-made ROM hack of the classic Sega Genesis platformer Sonic the Hedgehog 2. It was created by modifying the original game's code and assets, most notably altering color palettes and sprite artwork to create a 'rainbow' aesthetic. As a hack, it was never commercially released and has no official publisher or developer; it circulated online through ROM-sharing communities during the early 2000s or later. The game runs on the same Sonic 2 engine, but its visual changes give familiar levels a fresh, often psychedelic look. Gameplay is identical to the original Sonic 2: you control Sonic (and sometimes Tails) through side-scrolling stages, collecting rings, defeating enemies, and reaching the goal ring at the end of each zone. The core mechanics remain unchanged - running, jumping, spin-dashing, and exploring multiple paths. The hack does not introduce new story elements or additional characters; its sole modification is visual, repainting enemies, backgrounds, and even Sonic himself in bright, shifting colors. Some versions may also tweak level palettes or add minor graphical glitches as a side effect. Today, Sonic 2 Rainbow Edition is worth trying if you are curious about the culture of Sonic ROM hacks from the pre-modern era. It is not a polished title - it is a simple, often buggy, color-swapped variant - but that is exactly its appeal for retro enthusiasts who enjoy seeing classic games remixed by fans. Compared to more extensive hacks that add new levels or gameplay, this one is a quick, nostalgic curiosity that demonstrates how even small asset changes can transform a familiar experience. Approach it as a oddity rather than a full-fledged game.