


For the examples listed below that include a select before the start, in Contra, select was used to select a 2-player game after entering the code. As the code is used on games of various systems, the actual buttons will vary. The typical form is the directional combination followed by two buttons and then start and/or select, though most of the time, start is just pressed to start the game and not part of the cheat code proper. The code first appeared in Konami games on the Nintendo Entertainment System, hence the trope name, as the Nintendo Hard games couldn't be properly debugged if the programmers couldn't even get far. The Konami Code (known in Japanese as the Konami Command) is a specific version of the Classic Cheat Code, and is one of the most popular variants in video game history. Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start (mix and match as desired).
