Australia's governmental ratings board, the OFLC, has classified the unabashedly violent MadWorld with an "MA 15+" rating. Sega informed IGN that the game was not "edited or adjusted" for the land down under. Last week, the title received an "18" rating in Britain, and having now passed both the BBFC and the OFLC, it's expected that the United States' ESRB will hand the title a "Mature" sticker.
It's certainly interesting that Australia let the game pass with an MA 15+, at least based on the footage and images we've seen. For better or worse, perhaps the region is loosening up its policies in lieu of implementing an R18+ rating for games.