The art is pretty nice. The game's idea is good, though it would have been good if there were more levels. A few things that can be improved upon:
1. The ghost can just go out of the bounds of the camera
2. I could just keep pressing e on the same object, so making it so you have to go to different objects would have made it more fun.
3. Even some basic audio can make a game feel much better.
Overall, I liked the game, and it's idea is pretty unique.