What an awesome game. I had a blast all the way through.
At first I was charmed by beautiful, responsive UI. Then I was focused figuring out the system you've created. Before getting 5 dice I was playing it safe and each fight took a bit long, but after that I started using doubling and it got much quicker.
Music and sound effects fit the game perfectly, pixel art is wonderful. I wonder how did you make shadows for player and monsters? Are they created for each character or generated somehow?
I have encountered a small bug in the UI - when using 7's double power, often the UI would show regular (not doubled) numbers. Also, after finishing the game when you start new game, you can't select any tile, so you have to restart the game to play again.
Here's small portion of the screen after starting new game that I hope itch will allow to post :)
Great job guys. I loved it!