LEGO Harry Potter Collection achievements

Defeat Bellatrix as any Sirius Black character variant in a duel

Collect 10 million studs in one level

Complete the scene where Hermione and Harry dance in the tent

Use the Time-Turner

Unlock all of the members of Dumbledore's Army (Single Player Only)

Complete the game to 100% (Single Player Only)

Complete All Story Lessons

Complete the Story Levels in all four years

Complete Year Four Story Levels

Use the Deluminator

Unlocked on hitting 50% game completion (Single Player Only)

Complete Year Three Story Levels