Airball

"Now you're really in trouble" said the evil Wizard. "I'm turning you into a ball of air and sending you into my mansion, with over 250 rooms, to search for the Spellbook that may give you the clues on how to transform yourself into a human again.

It's not as easy as it sounds, for you, as the ball of air, have a slow leak, and you'll need to jump on an air pump in some rooms to remain inflated. Take heed, for if you pump up too much you will burst!