An Extraplanetary Multiform Mobile Identifier—or E.M.M.I.—is a highly agile research robot equipped with the ability to extract DNA. The Galactic Federation dispatched several to the uncharted planet ZDR in order to research the X parasite, a lifeform with mimicking capabilities.

Despite its roughly humanoid build, an E.M.M.I. can freely rotate its joints 360 degrees, allowing it to contort its body in a variety of fashions; for example, it can turn around on the spot by rotating individual body parts instead of moving its feet to turn its entire body at once. When patrolling an area, it usually walks on all fours, using the sharp claws on its extremities to scale walls and ceilings.