If You complete the indicated task You'll get the allotted gamerscore.
All City All Star (35) - Complete the "All City Tournament" with a grade of A+.
Break Steady Domination (25) - Win five consecutive ranked games online.
All City Champ (20) - Complete the "All City Tournament".
Online Heavy Weight (20) - Win 10 ranked versus games online.
The Collector (20) - Win all the prizes in the "All City Tournament".
Coop Marathon (15) - Last 10 minutes in coop endurance.
Dance Master (15) - Fill the move progress bar with all perfects.
Double Dog (15) - Survive 10 minutes in online coop endurance.
LP (15) - Last in endurance mode for ten minutes.
Puzzle Master (10) - Win a challenge game by destroying green Beatniks only by combos or bombs.
Beatnik Smash (5) - Crush 10 or more beatniks.
Mr. Perfecto (5) - Get a "+10" score multiplier.