Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
All Stages Cleared! ( 10 points )	Defeat the final boss and view the ending.
Contender ( 10 points )	Upload your recorded scores and clear times for all stages.
Crush Dr. Eggman ( 5 points )	Defeat a boss for the first time.
Enemy Hunter ( 10 points )	Defeat 1,000 enemies.
Golden Flash ( 10 points )	Clear all Acts as Super Sonic.
Immortal ( 25 points )	Build up 99 or more extra lives.
Ring Collector ( 15 points )	Collect all the Rings in 'Special Stage 1' and Clear the stage.
Speed's My Game ( 35 points )	Clear Splash Hill Zone Act 1 in less than a minute.
Super Sonic Genesis ( 30 points )	Acquire all seven Chaos Emeralds.
The First Chaos Emerald ( 5 points )	Acquire a Chaos Emerald.
The Story Begins ( 5 points )	Clear Splash Hill Zone, Act 1.
Untouchable ( 40 points )	Clear the E.G.G. Station Zone without taking any damage.