Defeat 30 Red Caps
Defeat Bellatrix as any Sirius Black character variant in a duel
Complete "Sword and Locket"
Complete "In Grave Danger"
Complete "Magic is Might"
Complete all lessons (Single Player Only)
Complete "The Seven Harrys"
Use the Deluminator
Complete "Horcrux and the Hand"
Complete Year 6
Complete "Felix Felicis"
Complete "Dark Times"
Complete "A Not So Merry Christmas"
Complete "Love Hurts"
Complete "Lovegood's Lunacy"
Complete "Dumbledore's Army"
Complete "DOBBY!"
Complete Year 7
Complete "The Thief's Downfall"
Complete "Back to School"
Complete "Burning Bridges"
Complete "Fiendfyre Frenzy"
Complete "Snape's Tears"
Complete "The Flaw in the Plan"
Complete Year 8
Complete the Bonus Level
Complete "Focus!"
Complete the game to 100% (Single Player Only)
Visit the Hogwarts Foyer in Year 7
Unlocked on hitting 50% game completion (Single Player Only)
Use a Quibbler dispenser 25 times
Stand still with no controller input for 5 minutes
Unlock all of the members of Dumbledore's Army (Single Player Only)
Use a Weasley box with every Weasley
Complete the scene where Hermione and Harry dance in the tent
Collect 1 billion studs (Single Player Only)
Complete "Kreacher Discomforts"
Defeat every Harry freeplay variant as Lord Voldemort
Unlock ALL of the Order of the Phoenix character variants (Single Player Only)
Unlock every character with a pet (Single Player Only)
Unlock all witch characters (Single Player Only)
Unlock every pyjama character variant (Single Player Only)
Defeat Bellatrix with Neville (Waiter) in a duel
Unlock every bad wizard (Single Player Only)
Complete "A Giant Virtuoso"
Complete "A Veiled Threat"
Complete Year 5
Complete "Out of Retirement"
Complete "Just Desserts"