Knock over ten characters using a ride-able object

Complete Year One Story Levels

Complete Year Two Story Levels

Complete Year Three Story Levels

Complete 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)

Collect 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)

Get True Wizard in every level (Single Player Only)

Complete the game to 100% (Single Player Only)

Buy every version of Voldemort (Quirrell/Tom Riddle/Voldemort) (Single Player Only)

Buy the entire Gryffindor Quidditch team from Book One (Single Player Only)

Use the Time-Turner

Complete all the LEGO Builder tutorial levels (Single Player Only)

Defeat 20 enemies with Fang

Buy the entire Weasley family (Single Player Only)

Defeat Quirrell in the Quirrell boss fight, using Voldemort

Collect 10 million studs in one level (Single Player Only)

Defeat 20 spiders with Ron

Freeze 20 characters using Glacius

Scare 20 students using a ghost character

Unlock all Animagi (Single Player Only)

Defeat the mountain troll, using Quirrell

Hide 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

Destroy 50 Devil's Snare plants

Complete the Quidditch level within five minutes

Collect 500 ghost studs