Twinetroid

DidYouKnowGaming posted a video in 2021 with the provocative title “The Japan Only Metroid Game That Changed The Series,” (8½ minutes) and as is usually the case with clickbait titles like that, it’s leaving out important information: the game in question is a gamebook, not a video game at all.

I don’t often like rewarding clickbait, although doing it to some extent is largely unavoidable now. Here is the video embedded, if you want to see it for yourself.

The gamebook is called Metroid: Zebes Invasion Order, an example of gaming ephemera of the same stature as the Worlds of Power series of books. The video enthuses about how it foreshadowed elements that would appear in later games, although both the games and the book would have been inspired by the same pop cultural elements, the Alien movies, so it makes sense they would vibrate with a similar frequency.

Illustration of our hero, Samus Aran, from Twinetroid, ultimately from the gamebook

You can watch the video if you want to know more about it. Here are some salient facts.

  • The gamebook is roughly of a type with the Fighting Fantasy books from the UK, giving you various situations to overcome and a basic battle system for fighting enemies.
  • Also like Fighting Fantasy, it’s pretty difficult.
  • The battle system uses dice, and asks that you record your exploration with a hand-drawn map, and record your inventory on a sheet of paper.
  • Secret rooms were handled in a novel way. As a gamebook in the same ballpark as Fighting Fantasy and Choose Your Own Adventure, you would sometimes be given a choice and a page number to turn to. Secret rooms would tell you only part of the page number, leaving you to search through the book for the right page. Important items were hidden this way.
  • The book has ballooned in price, with copies selling, in 2021 when the video was made, for around $2,000.

Yet scans of the book can be found online, and Devin Monnens used them to assemble, using Twine, a kind of play-like of the book, called Twinetroid and hosted at Metroid Database. It changes a few things for the format, automating combat and changing the mechanics of the secret room search. The instruction page mentions hidden hyperlinks, which is an interesting solution.

Combat example from Twinetroid

One interesting aspect of the game is that it largely recreates the play structure of the original game: the game world is divided into three major sections, you find items that increase you exploration ability, and you backtrack into earlier rooms to use those items to access new paths. There is an automap, but it doesn’t record anything about what’s in each room. You’ll probably need to take notes.

If Samus “dies,” you can still restart from a checkpoint with all the items you’ve found. Once you defeat the Mother Brain the game isn’t over yet though, becoming more of a traditional text adventure from that point, with a variety of endings. Give it a try, and experience an obscure piece of Metroid history.

Twinetroid (Twine-based text adventure, from Metroid Database)