Nice, simple game! I could see this getting really addicting after a while. One thing I'm confused on, is how this is related to the theme? Regardless, it's a great submission. A simple idea executed very well. Good job! :)
Thank you for your feedback! I wanted to make this game since a long time ago and I couldn't find any good theme implementations... So I just went to try and submit the best I could. I'm happy that you enjoyed it :)