Defeat 10 enemies with a Muggle character

Hide in a barrel as Snape

Defeat Quirrell in the Quirrell boss fight, using Voldemort

Complete the game to 100%

Collect all of the Gold Bricks

Rescue all students in peril

Collect all of the Red Bricks

Buy the entire Weasley family

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

Collect all of the house crests in Year 3

Defeat 20 spiders with Ron

Defeat 20 enemies with Fang

Complete the Story Levels in all four years