Keep watching, it gets better and better
This guy is a genius, he's very good at methodically explaining difficult concepts, and he's applying his brilliance to a goal which barely makes sense to anybody except him.
Not only did he find a bunch of bugs that Nintendo QA missed, not only did he reverse-engineer the hell out of them, he used them to create a new, much harder game-within-a-game.
Just imagine one of the Super Mario 64 programmers watching this video!
Mastodon instance for attendees of Refactor Camp, and members of various online/offline groups that have grown out of it. Related local groups with varying levels of activity exist in the Bay Area, New York, Chicago, and Austin.
Kinda/sorta sponsored by the Ribbonfarm Blogamatic Universe.
If you already know a few people in this neck of the woods, try and pick a handle they'll recognize when you sign up. Please note that the registration confirmation email may end up in your spam folder, so check there. It should come from administrator Zach Faddis.