Complete level 14.

(Though often believed to be controlled by the meat sack stemming out of its rear cuff, the parasitic sock puppet is in actuality masterminding all of its own movements and those of its host. By taking advantage of this common misconception, the sock puppet slowly perpetrates the remnants of human society, with passerbys completely oblivious to its nefarious plot to summon the endless void from the depths of darkness to consume our mortal shells.)