Super Metroid (Nintendo Cinematic Universe)

Super Metroid is a Japanese anime film.

Summary
Samus adopts the sole surviving Metroid.

Plot Summary

 * Samus brings a baby Metroid, the last of it's kind, to the Ceres space colony for scientific study.
 * The space pirates attack the colony and steal the baby.
 * Samus chases the pirates to Zebes.
 * After destroying their base, Samus enters Tourian, where she reunites with the baby Metroid, now grown into a "Super Metroid".
 * The Super Metroid helps heal Samus from her battle against Mother Brain, at the cost of its life, allowing Samus to Kill Mother Brain and escape Zebes before it self-destructs.