It was watching the recently-HN'ed Displaced Gamers video on Super Mario's warp zones that actually got me curious about how the Game Genie codes were encoded :

It was watching the recently-HN'ed Displaced Gamers video on Super Mario's warp zones that actually got me curious about how the Game Genie codes were encoded :) I'm definitely going to go through his past videos - looks like so much interesting stuff in there.