Trivia / Touhou Shinkai ~ Awakening Deep Mythos

• Throw It In!: Yukari's title as "The Youkari of Boundaries" was legitimately a typo, however Wookywok kept it because he thought it was incredibly funny.
• What Could Have Been: It was originally planned for there to be a Phantasm stage that would feature Hayako returning to her true form as the end-boss after being in a glitchy state in the prior Extra stage. That plan was scrapped by creator, citing that they didn't have the energy to go through with this, and so the complete story features the glitchy Hayako relegated to an Early-Bird Cameo in Stage 5, while her complete form is instead featured in the Extra stage.