Oh. Her. [Somehow Undyne manages to compact an eternity of grudgewank into one single syllable. Still, she raises her eyebrows, looking impressed.]

She didn't have her barrier up? Or is it that she doesn't have one? Anyway, if you could take her arm off on your own, then she shouldn't be that much of a problem if we send more than one person after her. [Normally Undyne would be more reluctant to engage in something that unfair, but considering how her last encounter with Lucifer ended, fuck that noise.]

Or we can just chuck a grenade at her. See how well she can dodge that.