I liked the cute little party ghosts! The only reason they wrecked some of the rooms was because of those tricky stairs. How I wish I could have haunted a single level house instead! If you're using Unity's physics, try giving the player's ghost and the wall/stair colliders a material with zero dynamic/static friction - it may help the player's ghost to glide along the walls more easily. Congrats on finishing the game for the jam!