Samus Aran

Samus Aran was a human woman who emerged from SM Atlantis in the Battle of the Halves/Alternates.

History
In the Battle of the Halves/Alternates, Blackout and Ynot were sucked into a crack in time that led to ancient Japan. SM Atlantis then crashed into the sea next to them and Samus, Mario, Luigi, Link, Kirby, and Fox McCloud emerged from the damaged city-ship. Ynot noticed Samus and her allies and exclaimed "You have got to be joking me", but both he and Blackout were sucked into another crack in time before any interaction could be made.

Trivia

 * Samus Aran was identified by her description: "an armored being with a cannon for an arm", as well as the fact that she appeared alongside several other Nintendo characters at the same time.
 * It is unknown which universe this version of Samus originated from: she appeared in the Original Universe, but aboard SM Atlantis.