Fireboy and Watergirl 2

Light beams pass freely through characters, but physical barriers and switches block their path. Push sliding mirrors carefully; pulling levers rotates beam angles by 45 or 90 degrees.

1. 1Red lava ponds are safe for Fireboy but instantly kill Watergirl.
2. 2Blue water pools are safe for Watergirl but extinguish Fireboy instantly.
3. 3Green toxic acid kills both characters upon the slightest touch.
4. 4Both characters must arrive safely at their matching elemental exit doors to clear each level.

Mid-game chambers require complex optical relay chains. In Level 16 and Level 23, one player must hold a continuous lever rotation while the partner sprints through timed light bridges.

Fireboy and Watergirl 2 runs in modern web browsers via HTML5 and Ruffle Flash emulation with zero downloads or installations required.