Here is a very cute mini pool that will introduce you to this game
Click the left mouse button on the target ball to give the direction. Clear the table before the expiration of the time limit for the next level. The number on each ball is multiplied by 10 seconds over time.
(Automatic translation)
A context menu should be shown when right-clicking or, on touch devices, long-pressing in the game. This menu especially allows to play in full screen and control the volume.