So far Dead or Alive: Dimensions hasn't had the best luck: the game was banned in Scandinavia in a child pornography furore, the game has now had its classification revoked in Australia, effectively banning it from sale.
The Australian Classification Board removed the game's PG rating after media reports focusing on the game's photographic Figurine mode, in which you can inspect figurines of characters from various angles. Whereas the Scandinavian release specified some female characters were below 18, the fighters have no age given in the Australian release, making it difficult to understand the sensationalist comparisons to "child pornography" that have resulted in the game's classification being revoked.
The game is now unavailable for sale in Australia until Nintendo resubmits the game for classification. Good job an imported UK copy will work then, eh?