READ BEFORE PLAY use your mouse pointer to show the apple where to go then press down button to make it move to the mouse you may need to re-start it yourself and the apple might go out of the screen . dont start is until you get it in the right position (im not talking about the apple)when you move down the apple will follow it as well as the button just saying when you move down without using the button then the apple might follow which is normal
IF YOU DONT WANT TO READ THE OTHER THING a simpler way is to hold the 'down button' and move the mouse, the apple will follow it doing this is more likely for you to go out of the lines. another thing is you might have to tap on the screen for the game to work. just saying the apple might move when you move down without using the down button which is normal