Buy the entire Gryffindor Quidditch team from Book One

Rescue all students in peril

Collect all of the house crests in Year 4

Collect all of the house crests in Year 2

Defeat 20 enemies with Fang

Collect all of the Red Bricks

Complete Year Four Story Levels

Complete Year Three Story Levels

Knock over ten characters using a ride-able object

Turn the sound down to 0 and music off in the options menu whilst in the library

Collect 10 million studs in one level

Rescued Jak.

Enter the Prison.