Flashing Square

In this game there is a square and a ball in the square. The ball will move through the square and collide with the sides of the square. But the square may flash when you touch it. You need to touch the square whenever the ball bounces off the edge of the square and then the ball can bounce and continue playing. If you miss the moment and the edges will sooner or later flash after the ball hits, the game is over.
Tap the screen to play the game

Tap the screen to play the game