Surely they can alter it a bit...
... to get classification.
For instance, where our version would have a character throwing his hand in the chest of his opponent, rip out his heart and have the opponent collapse and scream in pain, the Aussie version would have the character poke at the opponent, and a cartoon style dialog bubble appearing next to the opponent showing him saying "Oie, you big meanie!" instead.
With a bit of luck, that would be acceptable in Australia. Although it could still be viewed as bullying, hmmm, maybe tickle the opponent and make him giggle instead then, with his giggle bar going up, and when it's full you lose?
To make sure we know the difference, it could be labelled the "Foster" version, with the tagline "Looks like yours, but bland and insipid".