E.C.

E.C. is a robotic, alien entity made to resemble a female Human and a character from The Super Mario Bros. Super Show!

In The Super Mario Bros. Super Show! episode "Toad Warriors / E.C. The Extra Creepy", E.C., through a computer dating service, is set-up on a date with Mario. Going to Mario Brothers Plumbing, her appearance proceeded by flickering lights, an earthquake and smoke, E.C. introduced herself to Mario; after introducing himself to E.C., Mario asked for her hand, which E.C., literally, gave him, removing her hand and giving it to a shocked Mario.

After this incident, Luigi began trying to tell a lovestruck Mario how odd E.C. was, as E.C. wondered around Mario Brothers Plumbing. Rebuffing Luigi's claims about E.C.'s strangeness, Mario decided to go on his date with E.C., who had just revealed some of her abilities, such as being able to take a bite out of a wrench and light a lightbulb just by touching it.

Mario and E.C. later returned from their date, which was seemingly in E.C.'s spaceship, with Mario carrying E.C. back into Mario Brothers Plumbing. Eventually setting E.C. down on the floor, Mario and Luigi eventually came to the realization that E.C. was a robot when she began to malfunction slightly, spasming and repeating things over and over again.

Soon after Mario and Luigi realized E.C.'s true identity, an otherworldly voice was broadcast over Brooklyn, saying that all robots should return to the mothership, as Brooklyn has been deemed as not being able to support quality life; after this announcement, E.C. said goodbye to Mario, who procceeded to ask E.C. for something he could remember her by. Deciding to grant Mario his crequest for a memento to remember her, E.C. decided to give Mario her metallic heart before leaving Earth.

Trivia

 * According to E.C.'s quality sheet print-out from the computer dating service, she is an "out of this world girl, with head in the clouds, loves to travel..." and that she "comes with a two year warranty".