Metroid II: Return of Samus (Nintendo Cinematic Universe)

Metroid II: Return of Samus is a Japanese anime film.

Summary
Samus is dispatched to destroy the Metroid menace once and for all.

Plot Elements

 * After the events of the first film, the Gealactic Federation, seeing the threat posed by the Metroids, sends a special squadron of elite soldiers to the Metroids' home planet of SR388 to investigate, but the squadron soon goes missing. After retrieving a small sampling of data confirming a Metroid presence within the planet, the Federation sends Samus Aran to SR388 to destroy the species.
 * Samus lands on the surface of SR388 and explores the planet, traveling through its caverns. She encounters the Metroids in different metamorphosis stages, growing from small jellyfish-like creatures to large reptilian beasts. After killing most of the planet's Metroids, Samus finds and destroys the Queen Metroid.
 * Shortly afterward, Samus discovers a Metroid egg that hatches in front of her. The Metroid hatchling imprints onto Samus, thinking she is its mother. Refusing to kill the infant Metroid, Samus decides to take it with her.
 * As Samus and the infant Metroid reach the planet's surface to return to her gunship, they are attacked by a half-mechanical Ridley. After a long battle, Ridley is defeated, and Samus, along with the Metroid, leave the planet together.
 * Post-Credits Scene: A Hornoad attempts to eat one of Proteus Ridley's arms, but an X Parasite emerges, turning the Hornoad into a Hornoad-X.