Complete each achievement to get the allotted gamerscore. The numbers between the () are the amount of points your recieve for each achievement.
8-ball (10) - Win a pool game without pocketing the black ball.
Alien hunt (20) - Find 5 golden aliens in 'Toy race' and finish the race.
Bronze rumble (10) - Gather at least 11 medals.
Can't pick this (10) - Do not pick up any power ups for 3 laps in 'Black out'.
Chain racing (15) - Finish 'Toy race' 20 times in a row.
Gold struggle (20) - Gather at least 15 gold medals.
Hero (20) - Come in 1st place against 5 hard A.I., 5 times in a row in 'Speed racer'!
Loaded (15) - Unlock all power ups.
Real fun (10) - Finish 5 different challenges with friends on split screen.
Silver fight (15) - Gather at least 12 silver or gold medals.
Treasure hunt (15) - Pick up 5 golden flags in 'Black out' and finish the race.
Ultra fast food (40) - Beat 1 minute 15 seconds on 'Fast food'.