More info on Gilgamesh.

Those flying arms you see in the video is definitely Rocket Punch, and I read the number of arms fired multiplies in EX Mode. He covers his ears when he casts Missile, and lands on his head when using Jump.

His first alt. costume is supposed to be his FFVIII look, sadly minus the cardboard arms. And his second alt. costume is supposed to look exactly like is original sprite, as his first is based on the art.