I really need some tips - I can only consistently get to level 3 :D
Couple of other suggestions would be to have say 3 lives, so you can restart at later levels or make that something you can buy and maybe make the room just a tiny bit wider so you've got a little more room to avoid the ghosts.
But honestly it's an excellently executed game - have to go back to work 30min late due to playing it :D
and thanks for trying out my game, appreciate the feedback !