It's about time you've met him. He's been around for about as long as Axel.
Axel: I swear, if...
Example: my shirts but with the colors of your shirt(s)
"I'm a doodle noodle toodle."
-Phoenix/Creator
Axel: ALRIGHT, I see the difference.
Creator: good.
Mettaton: *claps in proud gay noises*
Creator: I didn't replace you... I just... Changed my main OC?
Axel: THAT'S THE SAME THING