Players tap hammers on a screen to react to randomly popping up objects. The game takes place in a virtual environment where players aim to hit objects as they appear.
When an object appears, it requires a rapid tap on the screen to hit it. If the player taps too late, the object disappears and another one replaces it. The objective is to tap these objects as soon as they emerge, lest they escape.
This game runs in a browser without download or registration. Players continue this cycle of waiting and tapping, with the speed and frequency of emerging objects changing throughout the game.