When I contributed to the kickstarter for these books, the two titles that initally caught my eye were 'Earthbound' and 'Chrono Trigger'. I had played Earthbound a little bit when I was younger, and even then thought it was too weird to be alive, so I knew that the book around it (especially with a writer like Ken Baumann) would be awesome. I also knew the other one, 'Chrono Trigger', a bizarre semi-biblical time-traveling RPG, would also be great. But truth be told, I never actually played Chrono Trigger. I wanted to pick the books of the video games I knew well, since I knew they would be much more relevent to my past experiences. The next obvious choice was 'Super Mario Bros. 2'.
It's pretty obvious to anyone whose played it that SMB2 is a departure from the first and third editions of the game. The villians are different, the setting is different, and even the music is replaced by either the jazzy, Django-Rheinhart sounding main theme, or an anxiety-inducing boss theme. The books helps lay out the details about how yes, this WAS a re-skinned Japanese game of completely different origin, used when the 'real' SMB2 was deemed too punishing for American kids. This is the point where the book takes off.
To put it simply, the 'Earthbound' book is a tough act to follow. That game is still a mystery to many people, and that author practically fused himself with the book and put out a living, breathing thing. This book goes into many interesting details around the development of the game, the quirks of its gameplay, but stays on that level the entire time. Sometimes there are callbacks that you think are going to grow into something larger, but instead stay even-keel or the subject is changed. Even when the author does reach, these connections still seem loose at best. The choice of including the speedrunner interview at the end, particularly, seemed way off base. Appropriately, I speed-read through that section. Overall, the author does a good job laying out why this game was so weird compared to other Marios and exposing a few unknown backstories. But when it does shine, it shines brightly.