Sonic 1 - No Spin Challenge is a ROM hack of the original Sonic the Hedgehog game for the Sega Genesis that modifies the gameplay to create a challenge focused on completing levels without using Sonic's spin dash attack. This significantly changes the game's dynamics and requires players to employ alternative strategies. The core gameplay concept remains based on the original Sonic 1. This is an independent project and not a release by Sega.

Sonic 1 - No Spin Challenge

Sonic 1 - Large Levels Demo