X
From Metroid Wiki
The X are the species of parasitic organisms found in Metriod Fusion. They invade a host body and absord the DNA then multiply and kill the host. The only natural enemy of the X is the Metroid.
The X are the species of parasitic organisms found in Metriod Fusion. They invade a host body and absord the DNA then multiply and kill the host. The only natural enemy of the X is the Metroid.