Sonic: Lost World Unlockables & Awards

Unlock Super Sonic

After you've collected all of the Red Rings in a zone, you will unlock a Chaos Emerald for that zone. If you can collect all seven of the Chaos Emeralds, you can use Super Sonic in any stage by collecting fifty rings and tapping the icon on the Gamepad.

Unlock A Bonus World

After you successfully complete the game, you'll unlock a bonus world that will be added to the top of the world map. This new bonus world isnt made of actual levels, but of what appear to be ideas for special stages or bonus worlds that were cut from the game. So, just finish Lava Mountain Zone 4 and you'll get the cool new bonus level!