[This doesn't surprise him considering the last time he was in the tower a robot asked him for a password. He'd messed up last time but powered through. This time he thinks carefully, watching Tadashi move as he leans against the wall supporting the elevator to talk to Hiccup.]

What kind of identification code? Badge, numbers, letters? Is there anything else inside the elevator? [He lets his eyes stay on Tadashi even as he's talking to Hiccup, hoping that maybe the elevator presents some kind of hint.] The last time we were here, it was a verbal password.