I feel like Dark Deception was directly based off of this.
This game is really fun, but could use a little work. First off, make the mouse cursor disappear unless you're on the pause screen. I kept getting annoyed by how the mouse kept moving around on my screen.
Second, make the ghosts a bit more threatening as you collect more and more pellets. It seems like the AI for them is already to follow you until they lose track of you (which is good), but you might also wanna make them move slightly faster and faster the more pellets you collect.
Third and finally, add a run mechanic for when they get faster and too close for comfort.