Tilt your phone to move a set of balls through a ringed maze toward the center. At first it’s simple: guide them in, one by one. But every move affects the rest. Helping one ball often sends another drifting away. The board is always shifting just enough to undo your last correction.
Later levels add rotating rings, slowly changing the paths as you play. There are four levels, all available from the start. No unlocking or progression gates -- just pick one and play.
You can play with the timer off and focus on steady control, or turn it on and try to beat your best time.