Play Fireboy and Watergirl 4 Crystal Temple Fireboy and Watergirl (by Oslo Albet) on an undertaking through the Gem Sanctuary! Transport from one side to the next. Complete every single testing level. Watch out for all threats and notice the shades of the teleporters. Switch between Fireboy & Watergirl-however look out; Fireboy can't contact water, and Watergirl can't contact fire. Guidance Move with WASD and the bolt keys.On portable you can change controls in the alternatives menu.