Very polished. The music is a bop and the sprites are simple but phenomenal. It took me a while to realize that the faces hat to add up to 7 - omg I just realized. It was the top face, wasn't it? Ok excuse the stupidity, I should have caught onto that sooner. For some reason my brain automatically assumed the face on the bottom of the cube was the important one.
Other than that, very fun! Also, bonus points for the sick loading screen and credits