[Seeing the little bone decoration, the drone with its own little commendation, sends a spark of fondness through him in spite of the situation. He hopes Papyrus doesn't paint over it.]

The tunnels aren't safe. [But doesn't Papyrus know that better than any of them? Sans remembers how he looked with his skull caved in and how he'd shaken afterward.] If we're sending something in, we should start smaller. Simpler tech, too. Fewer parts, fewer ways for it to go wrong. Might still be a bad idea. If something's holding it down there-- [Sans laughs, bitter and darkly amused.] Well, if some human back home popped the barrier from the outside, we wouldn't have stayed underground, y'know?