Mumbo does work at Scars mega base building up new Automatic Minecraft farms, new Minecraft redstone systems, and most importantly a giant Minecraft Piston Door! This big Minecraft piston door made Mumbo rage quit, with the system breaking multiple times. Mumbo also comments on the HCBBS, wanting the Hermitcraft Big Base Swap to come to an end, so that the Mumbo base can be swapped back with Scars base.