I really love the game concept, reminds me of Battle Bots. I seriously believe you have a very good concept to work on. The jam entry however feels rough, I think you can add many more things to make it play and feel better. I'd start with adding a basic damage HUD and graphical/visual cues that you are damaging (or taking damage).  I really envision a full blown game like this with different robots, upgradable parts, arenas, etc., so if you have the time and keep working on your skill you might be able to do it. Congrats,

I really like the idea of this game, but it's kind of monotonous to play. Not really enough freedom in how you can approach the enemy