I found the game. I don't know what I'm doing -- it seems to be a lot more difficult than I was expecting. (I don't know why I was expecting an easy game. Not like Nintendo Hard is a thing or anything, and Atari can easily be just as bad.) For those unfamiliar with the game, Ready Player One is a book by Ernest Cline, and upon release of the paperback he revealed that there's a secret Atari game at a URL hidden somewhere in the book. I believe I have found that URL. I mean, I'm playing the game, anyway.
Winning the game means getting access to the next gate -- a way up to the next level in a competition to win a Delorian. I need a new car.
I hope to beat it today. Right now, I'm working on a map of the levels so I can navigate effectively. (Also, does anyone have a clue what those squid-shaped things are?)