Zangetsu smiles to himself as he keeps walking, then brings up the same stick figures as before. This time, the stick-techs are standing in stick-Zan's way, with angry faces and weapons. A gleeful stickgetsu slashes them down. No mercy for them. He's done with mercy. He's done with fairy bullshit.

Then, marionetted stick-Sans appears, and stickgetsu knocks him in the head.

As for the Mother herself... what had Strange told him about her? Oh, yes.

So, he climbs the strings and finds what... must be the Mother of Invention, in Zangetsu's mind. A big, fat, ugly stick figure sitting on a pile of iron-grey stuff, with those little eyeball drones flying around her. To add insult to injury, she has some small little derpy fairy wings. Stickgetsu grabs a piece of iron from her pile and stabs her in her DUMB UGLY EYEBALL.

(Surely this isn't how all his trains of thought go...)