Tap and hold a colored dot, then drag to its matching pair (or any dot sharing its color) to draw a connecting line.
Connect every dot to finish the wave and hear the full song play.
Longer, more winding lines score more than short direct ones — the scenic route pays better.
A line can't cross a barrier (dashed) or another line. Some barriers rotate, and can snap a connection they sweep through even after it's finished.
Pinch or scroll to zoom, and drag empty space to pan around once you're zoomed in.
Tap HINT if you're not sure what's still unconnected — every unconnected dot flashes white.
In Relaxed difficulty, tap ERASE, then tap any line you've drawn to remove it and redraw.
Later waves can hide a dot behind its own sealed wall, reachable only through a swirling portal pair. Drag to one side to lock in, then start a fresh drag from the other side to reach its match.
Flight Mode (title screen toggle): pilot a ship instead of dragging — hold anywhere to steer it, and fly through one dot then another to connect them, momentum and all.
Tap the pause button any time to save your progress or adjust settings.