This is retarded.
All the enemies are just bouncing off walls or going back and forth. How do you consider this fun? Oh and I don't understand what you are supposed to do on the big ghost so I quit. Really boring.
Edit: Ok figured it out. Great boss you got there [/sarcasm]. Also I got stuck in the wall 3 or 4 times, died on level 3 right at the start twice so I suggest you fix this.