To use Watergirl, use the keys W, A, S, and D. To use Fireboy use the arrows.
If you want to play the original game, click on this link. Please remix this and please type suggestions in the comments below, because I can't figure out how to fix it. Here are links to the versions in order: http://www.coolmath-games.com/0-fireboy-watergirl-forest-temple http://www.coolmath-games.com/0-fireboy-watergirl-2-light-temple http://www.coolmath-games.com/0-fireboy-watergirl-3-ice-temple http://www.coolmath-games.com/0-fireboy-watergirl-4-crystal-temple