Joy is a timing game built around quick taps and simple scoring rules. Colored dots appear on the screen, and each successful tap adds points to the result. If a dot disappears on its own or a tap is missed, the score is reduced. The gameplay is based on short rounds with clear conditions and a steady increase in pace.

Level 1 lasts 30 seconds and keeps one dot visible on the screen at a time. Each accurate tap adds 10 points, while a miss reduces the score by 5 points. This stage introduces the rhythm of the game and keeps the mechanics easy to follow.

Level 2 lasts 20 seconds and allows up to two dots to appear at the same time. The dots become smaller and disappear faster, making the round more dynamic. Each successful tap adds 15 points, and each miss reduces the score by 5 points.

The final result is shown as a score rating based on total points. Joy uses a clean structure, short sessions, and simple tap-based gameplay focused on speed, accuracy, and consistent results.