Accomplish the indicated achievement to get the corresponding number of Gamerscore points:

Get Your Feet Wet (5 points): Clear Academy Classic.
Top of the Class (10 points): Clear all Worcestershire Academy levels.
Shiver Me Timbers (15 points): Clear all Docks levels.
Feels Like Home (15 points): Clear all Swamp levels.
Castle King (20 points): Clear all Evil Queen's Castle levels.
Parfait (25 points): Clear all the Evil Queen's Castle levels without losing a ball.
Join the club; We Got Jackets (20 points): Unlock all characters.
Big Bad Wolf (20 points): 10 Vs. Victories.
Babies Love Food! (10 points): Give the ball to Ogre Baby 100 times.
Is it Ogre Yet? (20 points): Clear any board 5x in Score Attack.
Dronkey Good Times (20 points): 3+ Dronkey attacks in one game.
Our minds are becoming one! (20 points): 10 Co-op victories.