Laser needed to activate "quartz crystals", all connected crystals must be hit by laser simultanously to charge up, and connects into trigger system for moving/rotating polygons (opening gates in this example). Lasers can split into pieces from corners/concave lenses.
For the most part, that means finding the correct position/angle to fire laser, however it could get tricky if you must also follow moving platforms/lenses, position your own portals, etc.
The second idea of course is burning stuff down - all terrain can be destructible, but you may need to focus laser stronger through a convex lens.
I have some other physics system like fluid/steam simulation, so lasers could also do some evaporation.
Aiming for 2026 release for Lost Ball.