Great work! I like the mechanic that the more books you carry the slower Koakuma gets. I like that it forces you to wiegh the risk every time you go for another book. The same thing applies for the sprint - do I leave it for when the ghost appears or do I use it immediately to get faster to the bookshelf? The only thing that was hard to gauge was the ghost's hitbox, especially when it's going diagonally. So I just stayed away as much as I could :D The audio is also very spooky, very fun game. :)