Trivia / Touhou Chireiden ~ Subterranean Animism

• Referenced by...: Undertale borrows many plot elements from this game:
  • There is a society of exiled monsters and youkai living below ground (Underworld/Underground).
  • There is a fight with a spider girl (Yamame/Muffet).
  • The underground is heavily industrialized to generate energy (Nuclear Furnace/CORE).
  • There is a battle in an underground palace with the ruler of the underground (Palace of Earth Spirits/New Home), (Satori/Asgore). The Last Corridor even looks similar to the Palace of Earth Spirits with its checkered flooring, stained glass, and big pillars.
  • A final boss seizes great power to destroy everything (Utsuho/Flowey).
  • A character related by blood to the leader of the monsters loses their ability to feel and becomes an empty shell (Koishi/Flowey).