I loved the art style. Your game is one of those games that is very simple, addictive, and fun. I also loved the intuitiveness of your game. You made Red and Black go surprisingly well together. The movement did feel a bit unresponsive and glitchy. The game would be better if their was some type of scene transitions (Like a screen wipe or something) . Over all good job, and keep it up!
EDIT: How does your game relate to the theme?