Prism Zap
Clear six spectrum crystals in at most four beam shots. Tap a top-row cell to aim the downward emitter; tap a mirror anywhere to swap / and backslash. Choose A or B before firing. Mirrors turn the beam, and each ↯ prism flips its spectrum. A matching crystal shatters and the beam continues; an opposite crystal stops the shot without being removed. Cleared cells stay open, so later shots can reach deeper crystals with a different starting spectrum. The lit trail shows the most recent beam. Plan the optical route, then change spectrum as newly exposed blockers demand.
About this experiment
Clear six spectrum crystals in at most four beam shots. Tap a top-row cell to aim the downward emitter; tap a mirror anywhere to swap / and backslash. Choose A or B before firing. Mirrors turn the beam, and each ↯ prism flips its spectrum. A matching crystal shatters and the beam continues; an opposite crystal stops the shot without being removed. Cleared cells stay open, so later shots can reach deeper crystals with a different starting spectrum. The lit trail shows the most recent beam. Plan the optical route, then change spectrum as newly exposed blockers demand. Keyboard: Tab and Enter/Space operate buttons; R restarts.