Ok, that's a fair point that games don't have to be funny and challenging anymore. And I have to admit that I really liked the music an clean look of your game. I can really imagine that you extend your game by more levels with different meanings. Then I would call it a game ;)
And yes, it was quite funny to get the green planet to move that fast, especially when the speed was getting higher and higher :D
Btw, I would really appreciate it if you also play and rate my game. Be as critical as you want ;)