Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
After Burner ( 15 points )	Take out three opponents with one triple-weapon.
Altered Beast ( 10 points )	Win a race while using an All-Star Move.
Amber De Amigo ( 10 points )	Earn your Amber Sega License.
Captain Silver ( 30 points )	Earn your Silver Sega License.
Classic Collection ( 15 points )	Win a race as each racer.
Clock Work ( 30 points )	Set a Personal Best Time on every Time Trial course.
Crazy Box ( 15 points )	Pass every mission.
Death Adder ( 30 points )	Take out opponents with items one hundred times over Xbox LIVE.
Dreamarena ( 10 points )	Play a friend over Xbox LIVE.
Enduro Racer ( 15 points )	Play one hundred events including any race, mission or time trial in any mode.
Fighters Megamix ( 30 points )	Take out an opponent with each character's All-Star Move.
Gaining Ground ( 10 points )	Get a Turbo-Boost Start in any event.
Ghost Master ( 30 points )	Defeat a Staff Ghost on every Time Trial course.
Golden Acts ( 80 points )	Earn your Gold Sega License.
High Roller ( 15 points )	Purchase every item from the shopping menu.
Last Survivor ( 15 points )	Finish the first lap in last position and go on to win the race.
Lucky Dime ( 10 points )	Purchase any item from the shopping menu.
Magical Sound Shower ( 30 points )	Race to every piece of music.
Mega Driver ( 10 points )	Score AAA on any mission.
Now There Are No Limits! ( 10 points )	Win your first Grand Prix Cup.
Outrunner ( 30 points )	Lap a trailing player in a race over Xbox LIVE.
Power Drift ( 15 points )	Perform a fifteen second Drift.
Project Rub ( 15 points )	Complete any Race event without collisions.
Racing Hero ( 15 points )	Win any race over Xbox LIVE.
Red Out ( 15 points )	Earn your Red Sega License.
Road Rampage ( 15 points )	Take out three opponents with one All-Star Move.
Rolling Start ( 15 points )	Complete Sonic's Test Drive.
SEGA World ( 30 points )	Complete a race on each course in Grand Prix, Single Race or Time Trial mode.
Shadow Dancing ( 10 points )	Defeat a Staff Ghost on any Time Trial course.
Streets of Rage ( 15 points )	Ram an opponent off the course without using a Weapon or Power-Up.
Super Hang-On ( 15 points )	Win the race holding first place on each lap.
Time Stalker ( 10 points )	Set a Personal Best Time on any Time Trial course.
To be this good takes AGES! ( 30 points )	Win every Grand Prix Cup.
Top of the Class ( 30 points )	Score AAA on every mission.
Triple Trouble ( 15 points )	Perform three Tricks in one jump and make the landing.
True Blue ( 10 points )	Earn your Blue Sega License.
Turbo ( 15 points )	Perform twenty Turbo-Boosts within a single lap of any event.
Ultimate Collection ( 100 points )	Earn every achievement in the game.
Up 'N' Down ( 10 points )	Take out a racer by manually directing an item.
Virtual Bronze ( 20 points )	Earn your Bronze Sega License.
Welcome to the Next Level! ( 15 points )	Win every race within a Grand Prix Cup.
Wheels of Fire ( 15 points )	Perform a Turbo-Boost Start across 3 consecutive events.
Wonder Boy ( 15 points )	Win a race by crossing the finish line in reverse.