Sonic the Hedgehog

Getting started: Press Enter to start the game. You control Sonic, an anthropomorphic blue hedgehog with incredible speed. The goal of each level is to reach the end sign while collecting rings, avoiding enemies like badniks, and navigating loops and obstacles. If you get hit while holding rings, you lose them but survive; if you have no rings, hitting an enemy costs a life.

The core loop is straightforward: run from left to right through zones such as Green Hill and Marble, spindash by holding down and pressing B, and jump on enemies to defeat them. At the end of each zone, you face Dr. Eggman in a boss fight. Since this is a hack, level geometry or difficulty might differ from the original, but the basic controls and objectives remain the same. Experiment with the spindash to gain speed quickly.