Good platformer. I really liked your take on the theme. The Levels were short wich could help the pace of the game ?!?!?
I liked the ghost too, it added a bit of character to the traveller. When you have a button intended to be clicked on, it's a good idea to have shortkuts on the keyboard to it.
Though the controls could be improved and for that I reconmend you watchging these videos (please watch them for your own good. The last one I didn't send because I think your game is bad, it just contains the stuff you could improve on.):