This game is super fun, at first I was a little confused as to what to do, but later I got it, and hard mode was definitely the most fun difficulty, my high score is 3220 on hard mode :D
Yeah. I don't know if you saw Tim play it. He had a very hard time figuring it out. I thought it might be confusing at first, especially if someone jumps right in and starts playing without understanding (or reading) the instructions. If I had more time (only had 6 hours to code it before the deadline), I would have definitely added a tutorial to it, and made the head flash or change color to indicate low energy. Also, the easy and medium modes were added in the last hour and I barely had time to try them before submitting, so they definitely need balance testing done. I'll be adding and fixing those issues once rating is over. Glad you enjoyed it!