Hand-eye Chase

See it, follow it, catch it.

Small rules. Big focus.

1. The 30-second round starts immediately. Press once to stop the horizontal ball, then once to stop the vertical ball.
2. Each ball must sit fully inside the centre ring. Touch, mouse, Space and Enter use the same rules.
3. A double hit earns 2 points; one hit earns 1. Two misses lose 2 points.
4. At least one hit advances the difficulty. Two misses keep the same level. Each pair has 2 seconds of feedback while the timer continues.
5. Your final score includes all completed pairs and deductions. Zero and negative points count; higher is better. Leaving for the background interrupts the round.

No sign-up. Just a little play.