The Konami code. This was originally used on the SNES to receive nine lives in Contra. Commonly people add start to the end of the code; however, this is not necessary it was just so people would un-pause their game.
If you're having trouble with Contra use the Konami code man, it's up up down down left right left right B A. It's that simple.
A secret fraternal guide for masturbationdating back to ancient mesopotamia. Set forth by one of the first branches of warring tribes composed almost entirely of ten-year old children who were taught by intoxicated shaman that self-image was more important than education. They became the first nation of Nintendous, on the Island of Contraceptive.
Sometimes, before we went on a date, we would up up down down left right left right B A start.