Trivia: Riviera: The Promised Land
- Cross-Dressing Voices: Ein. (Japanese audio only)
- Hey, It's That Voice!: In the PSP version, Ein is Voiced by Yuri Lowenthal and Ledah is voiced by Kyle Herbert. That's right, Kamina and Simon from Gurren Lagann.
- What Could Have Been: According to designers, the beta version of Riviera featured a female, white-winged Grim Angel as the protagonist. A handful of early-development screenshots that show her are available in the Designer's Works book.