Metroid: Volume 1

The Metroid e-Manga is a graphic novel done in Flash, consisting mostly of static images with some small animations and some sound effects, and is based on the first two chapters from the first book of the Metroid Zero Mission Manga. The e-manga provides early history on series heroine Samus Aran.

Chapter 1 details Samus's childhood, including how she got acquainted with the Chozo and how the Space Pirates destroyed her home at K-2L.

Chapter 2 details how the Chozo train Samus on Zebes, and introduces Mother Brain as a Chozo computer.

The Metroid e-manga and the characters it introduces are widely accepted as the canonical backstory for Metroid.