It's a fun, small little game, that is not too hard to understand. Maybe add a loading screen, or some instructions, it may not be clear what you do at first, because it's more or less just thrown at you. It would also be nice to add some music, or just a simple instrumental that fits. The lack of music makes things get boring faster. The graphics are simple, but I'm assuming that's the point. The colours are fine, but the continuous dull off yellow is a bit weird. It's a fun game, but small details can really help.