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