I like this game! The little ghost is really cute, and the core idea is cool.
It is a bit difficult, and the getting the timing right with avoiding the flash-light beams can be hard. It is usually a good idea when making AI systems (even simple ones) to let the player know what it is doing -- maybe some kind of signal before the people turn around. Also, a good rule of thumb is to always make the game way easier than you think it needs to be.
Keep it up! With some improvements, I think you have a really solid game. :)