Accomplish the indicated task to get Gamerscore points:

Big Cheese Of The South Seas: Create a Black Pearl Cluster. 
Cluster Buster: Create 25 combos. 
Collapse Master: Get a total of 5,000 combos from all games. 
Flower Child: Create a Flower. 
Grand Pearl Pooh-Bah: Create a Black Pearl Flower. 
Hexic Addict: Play 100 games. 
Marathon Mogul: Earn 150,000 points in Marathon mode. 
Millionaire Extraordinaire: Earn a total of 1,000,000 points from all games. 
Oyster-Meister: Create a Black Pearl. 
Star Gazer: Create a Cluster of bonus stars. 
Survivalist: Successfully complete Survival mode. 
Tick-Tock Doc: Earn 75,000 points in Timed mode.