- This article is about the creature. For other uses, see Genesis (Disambiguation).
The Genesis (ジェネシス Jeneshisu ), also known as Alcoon, is an enemy that walks on the ceiling and tries to attack Samus Aran by drooling acidic saliva onto her. Genesis are fairly resilient, taking 2 Power Bombs to kill.
They are found in two places in Metroid Fusion: The area behind the Sub-Zero Containment on the Main Deck, and in two corridors near the Tourian-like area of Sector 1. The Genesis in the latter area will transform into Gold Space Pirates once a pair of them has been defeated.
- The method of locomotion and biological appearance of the Genesis is likely an homage to the "Alien" creature in the series of films of the same name, as the Metroid franchise has been heavily inspired by the Alien franchise.
- Metroid Prime and Metroid Fusion: Prima's Official Strategy Guide refers to the Genesis as an Alcoon, despite the two species apparently being unrelated and having very different appearances. The guide also claims that they spit fire, rather than passively drooling acid.