YMMV / Touhou Gouyoku Ibun ~ Sunken Fossil World

• I Knew It!: When the game was first announced, many fans theorized that the "Toutetsu" mentioned by Saki in Touhou Kikeijuu ~ Wily Beast and Weakest Creature would be the Big Bad of this game. Come the full release, the theory turned out to be correct.
• It Was His Sled: Flandre Scarlet is not only playable, but is the one who ends up resolving the incident. This was a massive twist when the game came out, but is now one of the first things people mention about the game's plot.
• That One Attack: When playing as Minamitsu, Yuuma's last spell in Stage 7 can prove brutal, as it requires that you time your jumps around not only dodging attacks on the ground, but also dodging bullets in the air, all with your anchor having a considerable delay in its movement.
• That One Boss: Shares a page with the rest of the franchise.
• Unexpected Character:
  • It was revealed in a 2020 livestream that Kanako Yasaka was added as a possible opponent and playable character.
  • The August 14th, 2021 livestream revealed that Captain Minamitsu Murasa is a playable character.
  • 19 years since her debut appearance, Flandre Scarlet makes her first playable appearance in this game.
  • According to ZUN in the afterword, the whole game is based around unexpected characters for a Wily Beast and Weakest Creature side story.
• Viewer Species Confusion: Though Yuuma is stated to take the form of a lamb, people tend to mistake her as being a goat due to her omnivorous nature.