As we previously mentioned, the Konami Code was born into this world via the very first Gradius game. So, it’s only reasonable to expect that the game’s sequels would find a way to make use of it. Out of all the sequels, its use in Gradius III is a stroke of genius.
In the first Gradius, players punch in the code to unlock every power-up. However, try that in Gradius III and you will self-destruct.