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