Collect all the bronze, silver and gold trophies
Complete the Quidditch level within five minutes
Defeat 10 enemies with a Muggle character
Defeat Harry (as Voldemort), in the Graveyard
Hide in a barrel as Snape
Defeat the mountain troll, using Quirrell
Scare 20 students using a ghost character
Freeze 20 characters using Glacius
Defeat 20 spiders with Ron
Defeat Quirrell in the Quirrell boss fight, using Voldemort
Destroy 50 Devil's Snare plants
Defeat 20 enemies with Fang
Complete the game to 100%
Unlock all Animagi
Buy every version of Voldemort (Quirrell/Tom Riddle/Voldemort)
Buy the entire Gryffindor Quidditch team from Book One
Collect all of the Gold Bricks
Complete all the LEGO Builder tutorial levels.
Rescue all students in peril
Buy the entire Weasley family
Turn the sound and music down to 0 in the options menu whilst in the library
Use the Time-Turner
Collect all of the house crests in Year 4
Collect all of the house crests in Year 3
Collect all of the house crests in Year 2
Get True Wizard in every level
Collect all of the house crests in Year 1
Collect 10 million studs in one level
Collect all of the Red Bricks
Complete the Story Levels in all four years
Complete Year Four Story Levels
Complete All Story Lessons
Complete Year Three Story Levels
Collect 500 ghost studs
Complete Year Two Story Levels
Complete Year One Story Levels
Knock over ten characters using a ride-able object
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