Nice game! Obviously audio would be nice but I'm sure you know that. Other than that, I think the game is almost a bit too easy. Also, a button for skipping your turn would be cool, since it got boring for me having to do that over and over again.
Thank you for playing the game and, yes, I didn't balance the game very well. I was still adding enemy types when I had to stop the development and submit the game. Thanks for playing !