Play as Boolette! A little ghost who can transform into a bullet if she has enough ectoplasm! 

Your mansion has been attacked by ghost exterminators, and all of your friends have been trapped! Break the traps by touching them, and collect ectoplasm droplets in order to transform more often and solve puzzles! 

Controls, WASD for movement, jump is Spacebar, and by default T toggles your transformation. Have fun!