Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Bronze Rumble (10 points): Gather at least eleven Bronze medals.
Can't Pick This (10 points): Do not pick up any power ups for three laps in "Black Out".
8-Ball (10 points): Win a pool game without pocketing the black ball.
Real fun (10 points): Finish five challenges with friends on split screen.
Treasure hunt (15 points): Find five golden flags in "Black Out".
Loaded (15 points): Unlock all power ups.
Chain racing (15 points): Finish "Toy Race" twenty times in a row.
Alien Hunt (20 points): Find five golden Aliens in "Toy Race".
Gold Struggle (20 points): Gather all fifteen Gold medals.
Hero (20 points): Finish in first five times in a row against five hard NPC on "Speed Racer".
Ultra Fast Food (40 points): Beat 1 minute 15 seconds on "Fast Food".
Silver Fight (15 points): Gather at least twelve Silver medals.