It's great that you have a github project. If you ever run out of ideas, I have some. One game which I wrote in high school was "snake". See http://en.wikipedia.org/wiki/Snake_%28video_game%29 . And, in particular, I wrote 2-player snake. At the time, it used a shared keyboard. Reading over the wikipedia page, I realize how much further the game has been pushed, including a bluetooth-based multiplayer version. It must be fun. Anyway, good luck with your project!