Complete the following achievements to unlock Xbox Live Gamerscore points.

Achievement	How to unlock
Cha Ching! ( 25 points )	Earn 5,000 credits.
Ding Dong ( 10 points )	Hit one buoy at every checkpoint while racing Lake Powell and still take first.
Golden Delicious ( 10 points )	Earn a gold trophy in every event in the Single Player game.
Humans Gooood ( 10 points )	Play a 4 way local Multiplayer race in which all the humans beat all the AI.
It's a Start ( 20 points )	Earn a bronze trophy or better on every track in Single Player Race Mode.
Loco For Thunder Pops ( 10 points )	Earn 100,000 credits.
Medal Master ( 10 points )	Earn a bronze trophy or better in every event in the Single Player game.
People Person ( 20 points )	Earn 10,000 credits playing online or local Multiplayer events.
Spare Change ( 35 points )	Earn 1,000 credits.
Special Delivery ( 5 points )	Collect 80 hidden packages.
Splish Splash ( 35 points )	Earn a bronze or better in any Single Player event.
Taste My Wake ( 10 points )	Take first in 10 online Multiplayer events.