Spoiler warning: Plot and/or ending details follow.

Beauty Generator
The windmills were supposed to be a source of cheap clean energy to power the entire world. But they weren't enough. And a different source of energy had to be found.

the Sign Painter
[Blustery Day]

The Beauty Generator, often referred to as "the gigantic lady thing", is a large and mysterious figure only seen in Chapter 2. She is distinctly visible on the Chapter 2 map screen, and several of the levels in this chapter take place on her. In the last level of Chapter 2, Genetic Sorting Machine, she is awoken by the Small Beauty Goo injected into her forehead and is revealed to have enough energy to power the entire world.