The Miniroid is an infant Phazon Metroid. They are found in large floating swarms, on the derelict G.F.S. Valhalla and planet Phaaze. Miniroids are often found with fully mature Phazon Metroids. Contrary to their mature forms, however, they are not aggressive. They can only cause damage to Samus if she collides with them. To avoid premature death they travel in swarms to increase their chances of survival. They bear a striking resemblance to the more aggressive Infant Tallon Metroids seen only in Metroid Prime 2: Echoes. Unlike Infant Tallon Metroids, Miniroids will not rapidly grow by touching Phazon. Also, Miniroids can be killed with one beam shot, while the Tallon IV infants take quite a bit more; the former's adult form is ultimately stronger than Tallon Metroids however.