Manhunt 2

The most controversial game in recent memory Manhunt 2 saw heavy opposition in the UK for a full ban, even after Rockstar modified its original version and toned down the violence.

The wii version can be seen as particularly disturbing:

Particular controversy was repeatedly heaped upon the Wii version of the game due to the console's highly immersive nature, with certain gaming sites that had a hands-on preview of the game reporting that Manhunt 2 used the Wii Remote in an interactive manner; for instance, in order to stab someone in the game the player would have to flick the Wii Remote forward, in much the same fashion one would do when actually stabbing with a knife.