Complete each achievement to receive the allotted gamerscore.
Unlockable How to Unlock Chaos Emerald (15) Collect a Chaos Emerald. Desert Runner (15) Finish the Sandopolis Zone. Extra Hedgehog (10) Collect 100 rings. Extra! Extra! (10) Enter a Bonus or Special Stage. Fun Guy (10) Finish the Mushroom Hill Zone. Gettin' Super (25) Collect all seven Chaos Emeralds. Grease Monkey (15) Finish the Flying Battery Zone. Hot Feet (15) Finish the Lava Reef Zone. Knuckles Finale (25) Complete the game as Knuckles. Please Continue (25) Earn a Continue in either a Bonus or Special Stage. Sonic Finale (25) Complete the game as Sonic. Two Sided (10) Start the game once as each character.
Contributed By: Guard Master.
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