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.
Originates from Helldivers 2, where the player calls in stratagems like teammate respawns, resupply drops and heavy ordinance using sequence of arrow key inputs.
"Up Right Down Down Down" is the code for the Eagle 500kg Bomb airstrike, one of the most widely used stratagems for it's devastating effect on most enemies. Gained popularity from its appearance in reaction images, implying a reaction to something so heinous, vile, or disgusting you would airstrike the dogshit out of it.
Alice: Maybe we should leave the Terminids alone, we have a lot more in common that we think!
Bob: You're a bug sympathizer? Not gonna sugarcoat it: Up Right Down Down Down.