Although it was never released (& therefore about as BANNED as it gets when you think of it) I thought it only fair to give 1998's "Thrill Kill" a mention.

Wikipedia page

YouTube videos. <---------GRAPHIC, so please consider them NSFW & therefore view at your own risk.
^Upvoted^ & thanks for the trip down memory lane @PlayhousePals

NZ is, however, considerably more lenient about games than Australia, whose lack of an R18+ rating has resulted in numerous bans and cuts.

Bans in NZ are interesting in that the media in question has to be EXTREME to be banned: NZ has an AO rating for games which is accepted by the gaming public and regularly used.

Manhunt and Manhunt 2 were banned as "injurious to the public good", in that the only way to succeed in the game was to escalate the violence against characters in increasingly horrific manners, and the game rewarded greater and greater brutality in such a way as to desensitize the player.

Postal 2 was banned by the chief censor with the comments: "...The quantity and cruelty of the violence can be gradually accommodated and increased as the player becomes more callous and inured to the violence inflicted...The constant crass racist, sexist, and homophobic references motivate the player's crimes and tend to further encourage the player to accept and escalate the violence he or she inflicts."

Whoa.

Wonder if the Aussie laws are more stringent and reactionary because of their own cultural history? After all, wasn't the place the last stop for the disenfranchised , unwanted, so-called criminal elements of GB? You'd think they'd have less, "guns r bad" meglaphobia over there