There are many little problems. The gold counter has too little space for digits, when you go over 100 (which is pretty common) it chops some numbers. The fireballs bounce sometimes and don't dissapear after hitting a wall. They could also leave their lasting particles, I think there is an option for easily doing that in Unity, just to not make them dissapear abruptly. It was pretty repetitive though that's fine, there was not much time. Good things, looks were ok, and systems worked fine, just needed some touch-ups. Maybe gameplay was shallow but it's best to have something work nice than putting lots of unnecesary half-implemented features. In this case, it had a reduced set of features, and they worked fine.