Grey Dog Software now offers a playable demo for Mixed Martial Arts 2, their extreme fighting sequel that's due for release next week. Word is: "Grey Dog Software, a developer of sports management simulation software for the PC, today releases a limited time demo of World of Mixed Martial Arts 2. Grey Dog’s demo release of WMMA2 is considered both a trial version for fans as well as an opportunity for public beta. Starting today, players will be able to download and try out the entire game and be permitted to continuously repeat one month of game time."