Looks great and the quality of the into is impressive.
Did you make all assets yourselves during the jam? If so, that's just wow..
I died a couple of times on first enemy, I was pressing X and C but nothing happened. After a few tries I realized I needed to take out the gun first :)
Also about controls: Should back (down) arrow be moving character forward, the same way as up arrow? Because it did, at least for me. Maybe that's how horror games like this controls are like?
Creative idea with harvesting enemies and gaining new powers, that could be expanded. Maybe even turned into a roguelike metroidvania ;)