Sparks bounce along a hollow star’s inner wall. Drag a U cradle on the bottom arc to catch them. Clean catches charge you; catches near a heartbeat window score more; rim grazes score little. Misses dim a core; three dark cores close the shell. Later, twin vents fire and angles grow cruel. The cradle’s soft pulse is your only rhythm cue.
Drag a cradle to catch sparks inside a hollow star.