Yeah, the game changes when you realize that you can run right through the minions with the swords if you want :) That last screen is punishing. I was hoping that the difficulty scaled nicely, but that last screen could use some balance.
The music wasn't mine. That is the only thing in the game I got from somewhere else. There is a link to the creator's portfolio on the intro screen, so be sure to check him out and pass the compliment along his way!