THE METROID MENACE
Return to SR388
The Metroids on SR388 were more advanced than the creatures on Zebes. These monsters could shed their skins and grow even stronger. Samus worked deep below the surface and blasted all of the Metroids in her path. Her final victory was against the enormous Metroid Queen. When the queen was defeated, Samus discovered a Metroid egg which hatched before her eyes. Even this hardened bounty hunter could not destroy the Metroid larva. When the larva sensed Samus' presence, it clung to her as though it had found its mother. Samus packed up the Metroid larva and took it with her to the Space Science Academy on the Galactic Federation Space Colony where scientists could study the creature and understand its special organic structure.
- Spuper Metroid Instruction Booklet , page 4-
and yes, most of the items are random.