Konami Code

The Konami Code (known as "Konami Command" in Japan) is a recurring cheat code in various Konami-made video games. It was identified by "Up, Up, Down, Down, Left, Right, Left, Right, B, and A" and variants of the last two inputs.

It was first created during the porting process of the famous game Gradius, as a way to bypass the regular playthrough for players because Kazuhisa Hashimoto found difficulty trying to complete the game during testing. Because of the Metal Gear series being largely produced by Konami, they also incorporated the Konami Code at various points, or at the very least referenced it.

In Metal Gear Solid 2: Sons of Liberty, the code was briefly referenced with Snake and Otacon's handshake, with their movements mirroring the inputs of the Konami Code. The player can also input the Konami Code shortly after clearing the game, when the clear code is on display, after which Snake will be heard either saying "What do you think you're doing!?" or "STOP FOOLIN' AROUND KID!" as confirmation of the code, although it can only be used once. The expansion pack, Metal Gear Solid 2: Substance, features a similar use to the one above, as well as an additional use where, if the player registers their save file name in Missions mode as "UUDDLRLRBA," the player will unlock all missions and characters.

In Metal Gear Solid 3: Snake Eater, inputting the Konami Code will allow the player to see The End on the map during the boss fight with him. Also, if the player interrogates EVA in Zaozyorje, she will at one point mention the first eight inputs of the Konami Code. Inputting the Konami Code upon starting the game will likewise result in the Opening credits being changed to the Opening Title Credits, which features the people who created the opening. After clearing the game, inputting the code on the game cleared screen will have Snake remark "One More to Go..."

The Konami Code was also used as the final password for the Metal Gear Rising: Revengeance teaser site, where typing it in (without commas) will unlock a sneak-peek video of the title screen for Rising before E3.

The Pre-E3 show on Konami's website featured in the beginning of their video flashed the Konami Code before starting the video.