Complete 'The Battle of Hogwarts' on any difficulty

Successfully defeat 100 enemy wizards with Confringo

Successfully Body-Bind 100 enemy wizards with Petrificus Totalus

Complete 'A Giant Problem' on any difficulty

Use Protego to defeat 20 enemy wizards at close range

Defeat 50 enemy wizards using more than one spell

Complete 'The Basilisk Fang' on any difficulty

Complete 'A Problem of Security' on any difficulty

Complete any level without being defeated

Defeat 100 enemy wizards in the Main Story and/or Challenges

Trigger 5 explosive reactions

Defeat 10 enemy wizards before they cast a spell

Complete on Medium.