Installation complete
Sonic the Hedgehog – Classic Genesis Game is ready to play
Open the extension from Chrome’s toolbar. The original packaged game is the default mode, with all files needed for play included locally.
To start: Click the game, select Start Game, then press Enter. Use arrow keys to move; S, X, or Z to jump; hold Down, tap jump, then release Down for Spin Dash.
Getting started
- Pin Sonic the Hedgehog – Classic Genesis Game from Chrome’s Extensions menu for quick access.
- Open the popup; the original game is selected by default.
- Click inside the game, then use the controls shown in Guide.
- Use Restart to begin a fresh session.

Two focused play modes
Select the original game for the complete adventure, or choose World Sprint for a short local HTML5 challenge. Favorite remains session-only and Restart follows the active mode.

Verified controls
Click the game, select Start Game, then press Enter. Use arrow keys to move; S, X, or Z to jump; hold Down, tap jump, then release Down for Spin Dash.
The built-in Guide keeps the current keyboard map and restart behavior easy to find.

Extension removed
Thanks for playing
Sonic the Hedgehog – Classic Genesis Game has been removed from Chrome. If this was accidental, reinstall it to return to the original game and World Sprint.

