Great fun, with a fantastic soundtrack and gorgeous lighting effects! Definitely fits the spooky theme well - I jumped more than once when enemies caught me by surprise in the darkness. I particularly liked the section where you had to leave the torch behind in order to carry the key to the door - would love to see that idea expanded on if you revisit this post-jam!
Boss fight felt suitably challenging, but I managed to beat it after a few tries - appreciated the generous hitbox for the sword attack!