Use the up and down arrow to move Harry Potter. Cast spells at incoming Dementors using the space key. Special key activated after score reaches 5 points. Press key A for the surprise!

arrowkeys spacekey
Dementors killed: 0
Dreamteam: Assembling!

Well done! You have succeeded in protecting the Hogwarts castle!

The dementors now have control over Hogwarts!