Wonderful job for the time, but a few niggles damaged my experience of the game. Things like overlapping dice that are hard to select, unresponsive UI buttons etc. Didn't really figure out why the restart button took a while to respond, and I almost gave up after the first gambling phase as I couldn't see how to continue.
After saying that, I still had a bit of fun playing the game. I like two-phase games like this, especially when each phase affects the other (this game doesn't quite do that - the shooting doesn't really affect the gambling as far as I could see). I love the core concept and the presentation is superb, but the shooting phase is a little hard. If the enemies got more powerful over time, as you leveled up playing the gambling game perhaps that would address the issues?
Still, a fantastic achievement in the two days!