So, first of all, I really like the idea of being able to customise the tank and play with someone else, but the weight limit(which seems to be random from my experience) is a bit frustrating(I'm not saying it's a bad thing but still), not to mention the movement controls, which I find very unintuitive(can't really blame you for that, it's a game jam, and there's a multiplayer mode), the button used to fire the bullets should have been the Space bar/Ctrl in my opinion, rather than F, which is right next to D(Steer Right button), so... you know what happened next x)
The art style is quite childish haha, but again, it could be improved(a lot, especially the terrain).
The music fits the game pretty well.
I'd say the game is very unique and has potential!
(Note: I got soft locked xD I still have no idea how I managed to get myself stuck in a wall💀)