Steer with swipes, arrow keys, WASD, a gamepad, or the on-screen pad.

Eat berries to grow. Every 5 berries speeds you up and drops a golden bonus that fades fast.

Hold Boost (Space, or the button) to move twice as fast for double points.

Don't hit walls, stones, or yourself. Wrap mode loops the edges; Zen never ends a run.

Course is 20 stone layouts; eat the target count to clear each one.