Wow, thanks for your kind words and advice! I'm glad you enjoyed the game! Based on all the feedback I'm getting, I'm going to rework the tutorial once the jam is over -- for now, I've added some advice to the front page. I can't take much credit for the music; an artist offered up his collection for game developers with a creative commons license on the /r/gamedev/ subreddit, and I just picked a few that sounded right to me. You can find more of his work directly here: https://www.soundclick.com/artist/default.cfm?bandid=1277008&content=songs