I was thinking the exact same thing O_O
MR.WIGZ, what makes you think that every character has their own storyline? I was under the assumption that there was one long, continuous storyline and that the game would make you be certain characters at certain points in the game. Perhaps it'll let you choose (like playing Kirby OR Mario to beat down the Primids), but there would be a whole lot of specific cut scenes to make with all the characters that we plan on being in the game if you could use ANYONE to play through the whole thing.
Anyway, back on topic, I thought those things on the side of his body might be his hands. You know, those little reddish wing lookin' things? Maybe not...also, it'd be nice to have him be playable at some point, but Melee didn't let us play as Gigabowser, and we still don't know if we'll be able to play as the Hands in Brawl...so it'd be a little unprecedented.