Some variations change some of the buttons pressed, like requiring to press the L and R bumper buttons instead of ← and →, or changing the order of how the final two buttons are pressed (i.e.Because the cursor ends at the same spot where it initially was before inputting the code, some games drop the press of the final button completely and the code is activated as soon as it is successfully entered, while starting the game at the same time.

This is generally assigned to the START button, but some games may change it for any other, like the SELECT button.

The code is usually followed by the press of a final button in order to activate it.

In mobile phone games by Konami, the buttons are replaced by 5, 7, 3 on the numerical pad, which is the goroawase pronunciation for 'Konami': 5 is pronounced go, 7 can be pronounced nana or just na for short, and the kanji for 3, 三, looks very much like the katakana sign for mi, namely ミ.

Any code for a PlayStation controller, which uses shapes instead of letters, would use and instead of A and B respectively.

The exact sequence varies from game to game and has been adapted to fit the button layouts of different video game consoles, mostly the A and B buttons. The original version of the cheat code was designed for the NES controller. The Konami Code was thus included in the series' other sequels and spin-offs. The code was still present in the released version after Hashimoto forgot to remove it. Finding the game too difficult to play through during testing, he created a cheat code to give the player a full set of power-ups (normally attained gradually throughout the game). The Konami Code was created by Kazuhisa Hashimoto, who was developing the home port of the 1985 arcade game Gradius, a horizontal scrolling shooter released on the NES in 1986. The code was first used in the 1986 release of Gradius for the Nintendo Entertainment System but was popularized among North American players in the NES version of Contra, for which it was also dubbed both the 'Contra Code' and '30 Lives Code', because of its nearly necessary use in the game. Kazuhisa Hashimoto, creator of the Konami Code.

3.6 Other Konami games (in alphabetical order).

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