Play Fireboy and Watergirl 4 Crystal Temple Fireboy and Watergirl (by Oslo Albet) on an experience through the Gem Sanctuary! Transport from one side to the next. Complete every difficult 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 versatile you can change controls in the alternatives menu.