Ah, yes, the liveriver does seem to be quite a useful thing! Impressive Miller magic for sure, but it's not quite what KV's interested in judging by how low key their response is to knowing its function.

KV seems absolutely delighted by Sans's interest in their toy sphere, however. They absorb all of San's questions and as they clutch the sphere in between their feathered fingers, they respond with a testing question;

"How important do you think it is to play?"