Very nice game.
First, a compliment, the game looks very nice in spite of being very basic shapes - especially the orange level. Also, the music fit really well.
Unfortunately, two things got in the way of enjoying this as much as I could have:
1. The game was very laggy for me (is it just me?).
2. you move while trying to send out ghosts in different directions. I think it would be much nicer if you held 'C' and froze in place while picking a direction to send the ghost. (though this might be awkward for sending a ghost mid-air)