Hey! I love the concept! I like the tense moments where you are trying to aim precisely in order to not lose the match. Sadly, these moments are quite scattered along a single one, and I feel it takes quite a while to build up that tension, which is what I think it makes the game fun. I played easily a game until I reached 368 points and I kind of get bored a bit.
I think you have all the elements there. I wonder if there would be a way to create a different mode with more tension. Or a way to be rewarded better if I aim properly. Maybe a different score system? Maybe a way to die earlier? Maybe more ways to die?
I throw to you these ideas, I hope they can be helpful. I think the game has a lot of potential!