Buy the entire Weasley family

Collect all of the house crests in Year 4

Get True Wizard in every level

Collect all of the house crests in Year 1

Collect 10 million studs in one level

Complete the Story Levels in all four years

Buy the entire Gryffindor Quidditch team from Book One

Complete All Story Lessons

Use the Time-Turner

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

Defeat 20 spiders with Ron

Collect 500 ghost studs