Art was great, but as others have said, the numbers are super illegible, I think you could have gone with a 5-pixel font and still fit everything in your tiny resolution, your opponent could be off to the side a bit too to make room.
Would have been nice to see a bit more than just a few power-ups beyond the base Liar's dice game, but it's well put-together and was fun to play once I figured out how to read the numbers. I didn't realize at first what the squiggles in the opponent's speech bubble were, and that they were their counterbid.
Great job!