You should make it so user can hold down a key to change direction before they reach the intersection, joystick style. As it is, it feels like you are checking

You should make it so user can hold down a key to change direction before they reach the intersection, joystick style. As it is, it feels like you are checking for key press (not key down) in a narrow window when the ghost reaches the intersection. That is very hard to play. It is much more forgiving if I can press and hold the key whenever I want.