For all those saying that it's a prototype, so of course it's weaker than the normal Ultima... Just because it's an early stage of the the thing, doesn't mean that it's weaker, it could just as well mean that it's more volatile and harder to control than the "finished" Ultima weapon, meaning that it could have very well been alot more dangerous. Isn't Ultima also supposed to grow stronger from consuming aether, as it did when consuming the primals in the earlier game? There's no telling what the Proto Ultima might have devoured since it got lose.

Overall, a very lackluster fight.