Really fun game, but with one big big issue. First off, the game was very fun, the controls/gameplay were easy to learn. The sound and music were simple but suiting. The graphics as well were simple and suited to the gameplay. I personally really dislike the grainy filter on everything, it kinda gives ma e bit of a headache after staring at it for a while and I would prefer to be able to turn it off, but it isn't really a big issue. I also dislike that you can accidently grapple a wall and get pulled into a group of enemies. Perhaps this is an important skill later on in the game, but early on it is just annoying. Still though, not a huge issue. However, what is a big issue is that enemies walk through walls. It is pretty annoying to have an enemy walk through a wall shooting at you. Fortunately the bullets don't travel freely through the walls, but the second they get close enough to your side a bullet can come at you from an enemy you can neither see nor attack.
Overall though, great game. I know this is a jam version and I hope you do some more polishing of it moving forward. Maybe add a menu, inject some more story into the game, etc. Again , great job!