



Watergirl: WASD to move (W to jump). Fireboy: Arrow keys to move (Up to jump). Both characters need to reach their colored exits to complete each level. Watergirl walks through water but dies in fire; Fireboy walks through fire but dies in water.
Neither can touch green slime. Use crystals (carryable in this temple) and light beams to power doors, platforms, and switches.
Read the Whole Level First - Crystal Temple puzzles often span the entire level; don't commit to a route before understanding what every crystal does.
Carry Crystals Carefully - Walking off platforms while holding a crystal sometimes drops it; check footing before moving with held items. Light Beam Angles Are Precise - Reflectors and crystals need exact placement; experiment in a level's safe zone before risking lives.
Coordinate Switch Timing - Some switches need both characters on them simultaneously; counting 'one, two, three, jump together' helps in solo play. Replay for Diamonds - First playthrough, prioritize finishing; second playthrough, chase the diamond collection that completionists pursue.