Congrats on finishing the game jam! I like the art style and how far you went with the pumpkin theme. The pumpkin monsters and the pumpkin lamps on the background make for a nice atmosphere. I didn't run into any bugs during my playthrough. (I got through to the end on Normal). I like the thumbnail image you have, it shows off the art and made me interested in playing.
Constructive criticism:
1. On the start menu there is something wrong with the buttons, they do not always react. I clicked it a few times before it worked. I reloaded the game a few times and it seems like there's just some sort of delay.
2. Once your character is off screen you're just waiting for him to die, it's a bit of a needless wait.
3. Overall the pacing of the game feels somewhat slow? I am often just waiting for the next thing to load, there's no real play in that.
4. I assume you were going for a hidden area when you jumped into the wall above the tunnel but it didn't feel like a discovery, it felt like the game was broken. If it was reactive in some way (flashing a color in that section or something) then maybe it would feel like there was more intent behind it.