I recently came across a video on YouTube talking about Metroid's password system. I looked around for online password generators for Metroid and couldn't find any, so I decided to make my own.
The name comes from the end screen for Metroid, which asks the player to "pray for a true peace in space".
This project was bootstrapped with Create React App. I got technical details on Metroid's password system from jdratlif's Password Format Guide, and transliterated some of the bit-munging from the source for mpg, which is why this is released under GPL 3.