NumberWolf by Nick Weihs and Lisa Brown (Nick Weihs, Lisa Brown). A puzzle game where you play as a wolf with the power of addition.
The CREATE Game Jam, sponsored by Kill Screen and OUYA, is an online contest challenging developers to make playable prototypes in just 10 days. Many world-class games were initially conceived in game jams. Don't have an OUYA? Pre-order one here.