Konami Code, the famous sequence of up, up, down, down, left, right, left, right, B, A, was created solely because developer Kazuhisa Hashimoto was terrible at his own video game.

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Konami Code, the famous sequence of up, up, down, down, left, right, left, right, B, A, was created solely because developer Kazuhisa Hashimoto was terrible at his own video game. While porting the incredibly difficult arcade shooter Gradius to the NES in 1986, he got completely frustrated by dying during testing, so he programmed a backdoor cheat to give himself a massive power-up. He actually forgot to remove the code before the game shipped to retail shelves, accidentally giving birth to the most famous cheat code in all of human history. It is profoundly hilarious that an industry standard for secret inputs was born from a professional developer sucking at the exact thing he was paid to build. Now, gamers ironically get this code tattooed on their bodies, immortalizing a tired programmer's sheer incompetence and blatant refusal to improve