This is example how game can be fun and simple at same time. Also, theme implementation, simple but spot on! I told myself, just to beat my current high score of 27, and I am done with this game. Half hour later, I couldn't do it. I tried everything, be in corner, in middle, moving constantly, moving just when needed. Nothing worked for me (have to say I played on Android, maybe it's easier on PC). Increasing difficulty is implemented very nicely, everyone can play at beginning, but soon it starts to get really hard. Great job, and keep pushing!