Sonic: Lost World Bonus levels
Successfully complete the indicated task to unlock the corresponding level:
- Desert Ruins Zone: Collect all 15 red star rings in Desert Ruins.
- Frozen Factory Zone: Collect all 15 red star rings in Frozen Factory.
- Lava Mountain Zone: Collect all 120 red star rings.
- Silent Forest Zone: Collect all 15 red star rings in Silent Forest.
- Sky Road Zone: Collect all 15 red star rings in Sky Road.
- Tropical Coast Zone: Collect all 15 red star rings in Tropical Zone.
- Windy Hill Zone: Collect all 15 red star rings in Windy Hill.
Play as Super Sonic
Collect all 120 red star rings to unlock Super Sonic.
Hard mode
Successfully complete the game to unlock the Hard difficulty.
Music player
Defeat the final Boss to unlock the music player.