Oh, so it's Jiji's avatar (looks like a gelatinious cube to me, come to think of it) BEHIND sub Luigi, and she's not enclosed in anything. Perspective can be a bitch sometimes, and I've mistakenly taken the eye for a conn tower instead.
Clever pun on the part of Ouno since it also makes a reference to sub Luigi's artist (making this a triple namesake of sorts).
Modified the tags accordingly. Thanks for the heads up.
Updated
Whaa?? Oh no, noooo! I'm a proper girl, of couuuurse!This is Luigi.
It's a man's name, so does that mean you're an o... an otoko no ko?It's an Italian male name, a shortened form of Ludovico. Sometimes called Gigi as a sign of affection.shakemewhaatshakemewhaat