Junior
50Complete Year One Story Levels
Senior
50Complete Year Two Story Levels
Prefect
50Complete Year Three Story Levels
Head Boy
50Complete Year Four Story Levels
Complete All Story Lessons (Single Player Only)
Complete the Story Levels in all four years
Collect all of the house crests in Year 1 (Single Player Only)
Collect all of the house crests in Year 2 (Single Player Only)
Collect all of the house crests in Year 3 (Single Player Only)
Collect all of the house crests in Year 4 (Single Player Only)
Power Up!
45Collect all of the Red Bricks (Single Player Only)
Collect all of the Gold Bricks (Single Player Only)
Rescue all students in peril (Single Player Only)
Stud Magnet
30Get True Wizard in every level (Single Player Only)
Complete the game to 100% (Single Player Only)
Dark Wizards
10Buy every version of Voldemort (Quirrell/Tom Riddle/Voldemort) (Single Player Only)
Buy the entire Gryffindor Quidditch team from Book One (Single Player Only)
Back in Time
10Use the Time-Turner
Complete all the LEGO Builder tutorial levels (Single Player Only)
Good Dog
10Defeat 20 enemies with Fang
Buy the entire Weasley family (Single Player Only)
Defeat Quirrell in the Quirrell boss fight, using Voldemort
Multiplier
10Collect 10 million studs in one level (Single Player Only)
Defeat 20 spiders with Ron
Chilled out
10Freeze 20 characters using Glacius
Boo!
10Scare 20 students using a ghost character
Animagus
10Unlock all Animagi (Single Player Only)
Defeat the mountain troll, using Quirrell
Watch Out!
15Knock over ten characters using a ride-able object
Solid Snape
15Hide in a barrel as Snape
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
Lumos Solem
15Destroy 50 Devil's Snare plants
Complete the Quidditch level within five minutes
Collect 500 ghost studs