Not to sound whiny, but this did get too hard with the black and red enemy. I wish you could just destroy this guy. It was too easy for him to hit you. The outlet made it even harder. For the most part, this game was still enjoyable. I didn't even know I could get that key at first.
I especially love how you can get a good shot at the ghosts. You basically just run around to avoid them. It can be repetitive, but it's mostly fun. The sounds are quite nice. A good entry for this Ludum Dare.