First the praise: the concept of a dice wielding guns that transform randomly when the magazine is emptied, while fighting casino appliances and objects is quite the idea, one that could definitely be expanded upon. It has custom art and music, and the sfx adds to the experience.
Second the criticism: it requires a more explicit explanation of how the game plays, a remaining ammo counter and a more visible indicator or sound cue for when the player takes damage (besides the health bar going down).
Cheers!