Really fun and interesting concept!! Nailed the simplicity and replayability I'd be looking for in a "mah-jong-like". Its truly incredible you got a MP game up and running in such a short time... although no one was online when I played, I could absolutely imagine how crazy and "hungry hungry hippos"-ish it would become. Also a great simple math game -- just enough challenge to make it engaging. Could even see this as a teaching tool for a arithmetic!