Accomplish the indicated achievement to get Gamerscore points:
Action Mode  : Reach level 9 in Action mode. 
Cascade 8    : Get an x8 Cascade. 
Hyper1000    : Make 1,000 Power Gems total with the games. 
Power10000   : Make 10,000 Power Gems total with the games. 
Classic Mode : Reach level 18 in Classic mode. 
Cognito Mode : Get 50,000 points in Cognito mode. 
Endless Mode : Successfully complete level 280 in Endless mode. 
Finity Mode  : Reach level 9 in Finity mode. 
Hyper Mode   : Reach level 9 in Hyper mode. 
Multi Mode   : Unlock Twilight, Hyper, Cognito, and Finity modes. 
Puzzle Mode  : Successfully complete level 80 in Puzzle mode. 
Twilight Mode: Successfully complete level 10 in Twilight mode.