The rule is written on the screen
'Stop the dot in the green zone.' There is no tutorial, no menu and no account. Tap once and the dot starts running; tap again and it stops.
Hit green and the score climbs and the next round begins — faster, with a narrower zone. Miss and it is over, and your score stands in the middle of the circle with the record at the top.
There is no wait between attempts. 'Tap to retry' means exactly that: the next game starts on the same tap that ended the last one.
- One tap starts, one tap stops
- The zone shrinks and the speed rises every round
- Your record is always at the top
- No account, no waiting, no menus


