I loved the menu and the idea itself was okay- but the game itself needs proper polish. For example- The grappling feels slightly unnatural- it kind of lags? Shooting is pretty ok. It has no music and the art is very minimal, to say the least. Maybe you're not good at drawing or composing- but in that case just use pre-made assets and credit them. Another problem OUTSIDE the game is that it really, really, needs a thumbnail. Cuz a thumbnail is what draws people to try your game- and ppl didn't do that. I only saw your game because of randomizing- but i wouldn't have realised it even existed before that. Onto the numbers:
Art: 6/10
Music: 0/10 (sorry. the lack of music and sfx is pretty unnatural)
Programming and implementation of mechanics: 7.5/10. Not bad.
Theme: 8.5/10
Other than that- It's just a good game. Keep it up, and maybe fix stuff post-jam :)))