The Extraplanetary Multiform Mobile Identifiers—or E.M.M.I.—are highly agile, large research robots. Their peaceful purpose has been somehow corrupted, and they are now on a relentless chase to capture Samus. For her, getting caught means certain doom.
The deadly E.M.M.I. are contained to certain, occasionally expansive areas of the planet confined by E.M.M.I. Zone Doors. If the E.M.M.I. is alerted to her presence, Samus must elude its attention before she can make for the zone’s exit and continue her escape.