That was cool! The art is proficient, the character designs are charming, and the soundtrack is simply excellent! The mechanics are highly competent, fleshed out, and fun to use. It's simply an overall great entry!
That was a cool GBJAM 12 splash screen!
There's a couple of sound balance problems. The item pickup sound, the spider jump sound, that noise when you hit the jumping gargoyle with the stick, and the pot breaking sound are all a good deal louder than the other sounds. It's a little irritating.
I know this is my own fault, but it's possible to open the menu and save the game after losing all of your health, softlocking the save.
I could be wrong about this, but it seems that, if the player is standing on two different moving platforms that are both moving in the same direction, it will add both of their speeds to the player's speed, making them slide off.
Fantastic! Great work!