2. Boong-Ga Boong-Ga
Another arcade-only game, with it's own very unique controller. Boong-Ga Boong-Ga is actually a Korean game but made for the Japanese market, from the premise of Kancho, a popular Japanese prank which is pretty much more a form of sexual-assault as the person initiating Kancho holds their hands in the shape of an imaginary gun and thrusts them towards their target's anus, shouting "Kan-CHO" whilst they are distracted. Just in case you were wondering why a Korean game managed to make the list. You begin by selecting a character to err... boong-ga boong-ga, your choices being, ex-boyfriend/girlfriend, mother-in-law, gangster, prostitute and even a child molester. Once selecting your target, you'll see their face on screen whilst they are bent over, and the lower half of the body is represented by the games controller, which just happens to be a representation of a person bent over from the waist down. You then Kancho this artificial anus. I am totally confused that something such as this is actually in existence, let alone that I'm writing about it, but it doesn't stop there! For those whose "sexual behaviour" scores high, you're awarded with a card that rates your performance, and for the highest scorers you're awarded with a small... plastic... poo.