It wasn't Matsuba, by any chance, was it? A long time ago I met someone who recognized me as that. The different-names thing actually seems to be fairly rare except for a handful of people.

[Gengar looks up and gives a little wave before sinking into the ground in his trainer's shadow until all that's left is the glowing red eyes and the wide grin. Very Cheshire Cat. Morty sighs and rolls his eyes.]

Show-off.