Aside from Microsoft's "Operating Systems", the n game is the the world's largest computer virus. It is installed on every school or public computer.

It hypnotizes the user to keep playing despite dying 46436 times to a zap drone. All for a different color (called "Flavour" in game) for the ninja, so the user can play as a pink ninja looking for more flavours.

A racist game. Notice it is called the "n game" and the guy is black. It does not mean ninja it means NIGGA.

A computer game that runs on Macromedia Flash Player 7.
Also a puzzle solving game in witch a ninja constantly and hilariosly dies.

when the Goat gets so drunk that he wants to play football in the house

Something you say as a joke at first until it gets serious.

A hentai game on a porn site that you looked up cuz a friend told you about it and says its not about sex even though is a porn site

A game that originated at a Bloc Party concert when a female was grinding up against a 15 year old causing him to "get off"
The game is mostly played at parties and clubs in the UK but has been seen a few times stateside.