Play Sonic The Hedgehog 2 (Simon Wai Prototype) Online – SEGA Genesis Game

Game Overview

Ever wondered what Sonic 2 could’ve been before its final release? The Simon Wai Prototype is a fascinating time capsule—a rare, unfinished glimpse into Sonic’s evolution. This early build, leaked years after development, features quirky differences like altered level designs, missing sound effects, and even a very early version of Hidden Palace Zone (which was cut from the final game). It’s rougher around the edges, sure, but that’s the charm—you’re playing a piece of Sonic history, complete with weird glitches and half-baked mechanics that show how the iconic sequel took shape.

For fans, it’s like digging up buried treasure: spot the differences in Emerald Hill Zone, laugh at Tails’ janky AI, or marvel at how much polish the final version got. Whether you’re a speedrun enthusiast, a retro gaming nerd, or just curious about Sonic’s development secrets, this prototype is a must-see. It’s not just a game—it’s a behind-the-scenes tour of a classic in the making.