Defeat Bellatrix as any Sirius Black character variant in a duel

Complete "Kreacher Discomforts"

Complete "Dumbledore's Army"

Complete "Dark Times"

Collect all the bronze, silver and gold trophies

Destroy 50 Devil's Snare plants

Buy every version of Voldemort (Quirrell/Tom Riddle/Voldemort)

Buy the entire Gryffindor Quidditch team from Book One

Collect all of the Gold Bricks

Buy the entire Weasley family

Collect all of the house crests in Year 4

Collect all of the house crests in Year 2

Scare 20 students using a ghost character