Anyhow, This was sorta a comical image, or at least was originally intended to be. "Just Another Day" started off with the following conversation (or something similar to it):

Liz: bouncing around in joy This is great! they'll be doin' a whole buncha stuff together! Like, um, i duno, leveling cities!

Simon: hehe yeah, Metal'll turn into that red uber form of his and Stealth'll ride his shoulder throwing rocks at old people while metal shoots out lasers n'stuff.

Liz: I gotta draw that.

and thus, we have this. Aww, they're so cute.