Very nice visuals, I love the drawings. The atmosphere is really cool also.
I felt the difficulty was a bit rough for me. I’m not a big platformer player so I died a lot and got discouraged. The attack feels a bit uneffective when two or more ghosts attack me and can regenerate in less than five seconds. The insta-death of the spikes and water added to the frustration also.
I know it’s hard to tune the difficulty of a game while creating it but I’d suggest toning it down by enhancing the player’s attack or giving him a special attack with a cooldown.
Overall, it was a cool experience for me. Congrats! :)