I won my first few games pretty easily, and began to wonder if it was rigged so nobody shot at you in the first round... Then I suffered a first round defeat that totally dispelled that notion! And then I only won occasionally, but I throughly enjoyed my time with this game.
Problems I encountered included not realising which one I was at first. I know it's the one with the star, but even when I knew that the way it starts with a random position and colour each time was confusing me often. The other problem was that the shooting-first thing makes very little difference unless the person about to shoot is pretty close to you. The slower person typically still gets time to shoot, and the bullets pass each other while travelling. I realise this is probably an attempt to introduce a bit of subtle tactics into the mix, but I think overall it just reduces the reliance in the dice to determine the outcome.
Only other thing was the UI could use a little work - it's kind of a pain to click "aim left", then the target, then "aim right" then another target, then "start round". And you don't get to see where you're aiming like you can with the other players. Minor niggles don't spoil this for me though.
Congratulations for creating a unique game under the immense pressure of a game jam. No easy feat!