There's something on my mind since reading MASK #3
After finishing MASK #3, I had to reread the last 2 pages to make sure, but it really looks like it's setting up a joke. A new character name Baron Karza promises to stand back to back with Miles Mayhem in battle if Miles can help him come to Earth.
This reminded me of a picture book, which I haven't thought of in a long time. In I'm coming to get you! by Tony Ross, a monster comes to Earth to "get" little Tommy. Except after a long journey through space, we find out the monster was really only the size of a mouse.
Which brings me back to Baron Karza, who is a character from the Micronauts franchise. And well, being from the Micronauts franchises also means he's from Microspace. In previous versions of Micronauts, typical people from Microspace have been portrayed to only be knee-high on Earth. So this idea of Miles and Karza fighting back to back, try to imagine that.