Congrats on finishing and submitting your game!
I liked the goofy programmer art. Simple sprites and animations often work the best! It's charming, too. I got stuck on the second level. I couldn't kill the black pawns quickly enough with the given dice. I don't know if they keep spawning or what, but I got overwhelmed.
Having dice with blank sides really hurts this design, I think. You might be better served by having weak dice (1-1-1-1-2-3) or something. Especially on level 1, you can spend quite a lot of time doing nothing trying to kill one enemy which is not a good player experience. Randomness can be used in games, but it still has to feel good and the blank faces miss the mark on this. Retrieving the dice also felt a little cumbersome. If the enemies were a tad slower, it might work, but as it is, the mechanic didn't feel very good.
Good job on your game and keep making games!