This is my first Mini-jam, so I'm much more familiar with the Ludum Dare-style of providing feedback. Allow me to break down my feedback in their style of categories.
Graphics: I'll be blunt, it's jarring. The 3D models of the crossbow and axe are masterfully done compared to the 2D spritework. That's not to say the 2D graphics are bad (in fact I think the monster designs are creative and interesting), but the art styles clash.
Audio: I liked the music! It fit the "dark moody vibes" of the gameplay. No notes. Great work.
Fun: Yes! You set out to make an endless(?) survival, which you achieved. It's a fun genre, what can I say?
Innovation: Despite the praise I gave for using a genre I find fun, it's a pretty standard take on an endless survivor. I think this game could use some more unique gameplay elements, other than simply killing the bad guys and avoid dying.
Mood: You set a great creepy DOOM-like vibe, and I'm here for it.
Theme/Limitation: Right- so I'll admit my game is in the same boat. Yes, there are in fact two items. That was indeed the limitation, but there's no twist and the limitation was taken entirely at face value.
Overall: Good work! The difficulty curve is honestly well done for a randomly generated wave system. The waves getting harder makes the player feel a sense of progression, and hey- the audio toggle button works! Everything works and the game feels bug-free from the time I spent with it. Bravo!