A metroid is a floating organic creature that sort of looks like bubble with wierd structures inside the organisim. It is transparent so you can see threw it and it has these curved set of griping claws underneath that when it attaches it self to you it drains your energy. Basically they are creatures floating in suspended animation. We need someone to post a picture of one here.
In Metroid 2 though the creatures took on a new look like the queen Metroid and her drones plus the organisims. They are interesting creatures.
__________________
|