Anarchy Reigns (aka Max Anarchy in Japan) is an online beat ’em up action game developed by PlatinumGames and published by Sega for the Xbox 360 and Playstation 3. The developers shared some videos, showing the game in a near complete beta state on their Youtube Channel, in which we can see a different HUD and increased amounts of gore over the final version. Also, at PlatinumGames’ blog, there’s an interesting article about the development of the game (in Japanese).
According to the post, Anarchy Reigns started life as an online multiplayer sequel to Mad World. An initial prototype, as seen in the images below, show that the game was once presented in a similar cell-shaded visual style in certain early test-rooms.