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.