How to play: shape the cyan wave until it covers the dashed gold target. Tap the buttons, or drag on the wave: sideways changes frequency, up and down changes amplitude. Each match adds time. From target 8 on, two waves add up (interference) and you tune both. Keys: arrows, 1-3 for shape, W to switch wave.

Freeze & probe

Capture a still copy of your waves to inspect how they add up. The copy stays fixed while you keep playing.

Capture current wavesClear copy

Probe position (% of screen)

−+

Capture your waves, then move the probe to read their displacement at a fixed time.