Saints Row IV has been refused classification by the Australian Classification Board, and one of the reasons for its ban is quite hilarious - that reason? It includes an "alien anal probe".
Saints Row IV was refused classification for "interactive, visual depictions of implied sexual violence which are not justified by context" and "elements of illicit or proscribed drug use related to incentives or rewards." What does the alien anal probe do exactly? Well, for the curious:
The game includes a weapon referred to by the Applicant as an "Alien Anal Probe". The Applicant states that this weapon can be "shoved into enemy's backsides". The lower half of the weapon resembles a sword hilt and the upper part contains prong-like appendages which circle around what appears to be a large dildo which runs down the centre of the weapon. When using this weapon the player approaches a (clothed) victim from behind and thrusts the weapon between the victim's legs and then lifts them off the ground before pulling a trigger which launches the victim into the air. After the probe has been implicitly inserted into the victim's anus the area around their buttocks becomes pixelated highlighting that the aim of the weapon is to penetrate the victim's anus. The weapon can be used during gameplay on enemy characters or civilians. In the Board's opinion, a weapon designed to penetrate the anus of enemy characters and civilians constitutes a visual depiction of implied sexual violence that is interactive and not justified by context and as such the game should be Refused Classification.