Thanks Kaimega. I named it like that because I used to play it a lot when I was a kid.
Right now, you can only play against a friend. Or against yourself, but that's kind of crazy. I'll make the AI for another release.
By the way, the OUYA dev team told me about a bug when using two OUYA gamepads. But I don't have two OUYA controllers to test it. I've only tested it using one OUYA gamepad and a PS3 gamepad. I'll try to fix that for the next release too.