Slide is the 20th game mode and the 14th endless mode in Color Switch.
The aim of this game is to avoid the obstacles by sliding/dragging the ball left or right, or just tapping left or right. Levels get more harder because of increasing obstacles and surprise movements of spikes or objects.
At Level 44, the last obstacle before the finish line, can be passed through by going left or right. The developer might have forgotten to put some barriers at both left and right sides of the last obstacle.