 According to the planetarium in the Observatory, Tallon IV, the  planet where this game takes place, is within the same system as  planet Zebes (the planet where _Metroid (1986) (VG)_ (qv),  _Sûpâ Metoroido (1994) (VG)_ (qv) and  _Metroid: Zero Mission (2004) (VG)_ (qv) take place). Both worlds  are neighbouring planets.