You have to move the doll to reach the exit after collecting all the flowers before the time limit. If the robot gets into a line of sight with the doll the robot moves towards the doll and hits the doll ending the game.
Press the arrow keys to move the doll. If you simultaneously press any two-arrow keys at the same time the doll freezes in the existing position.
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.