Among other changes, the heavy version of Tankaa has retired the odachi in favor of the basic daisho. It's less clunky in close quarters, and reach wasn't really an issue for him to begin with.
Oh, and the coveralls are blue now, since heavy Tankaa only existed in computer simulations (or when he was subjected to pranks) prior to The Resignation, and eventually resulted from an ill-advised attempt to blend in with Kremling mercenaries. (Admittedly, it was either that or living in a spaceport storage locker and taking advantage of his health club membership for the sake of hot showers.) "Okay, you're still not a crocodile, but as long as no one looks at you closely, you can just say that you lost your tail in an accident."
I think blubber butt is here to stay, just because he'd me more fun/interesting to suit as, and would help allow real me to continue being invisible. That, and the character's a lovable couch and suitable counterpoint to the other primes...
Artwork, Character © of me