I wrote the song in this game...
And at first, I thought it was pretty cool, and it was nice to see my music being used in a game. But then I found out you're charging people for the full version? That makes this a commercial product. And you didn't ask to use my song in a commercial product. AND I think it's bullshit that you're charging people for this game. SO, I'm asking you to remove my music from your game, or make it completely free. Your choice.