- Anime First: There are tie-in novels being released alongside it as well.
- Defictionalization: At least one version of Momoka's curry now exists in real life.
- Hey, It's That Voice!:
- Japanese Version:
- It's amazing that Shoma hasn't shown up naked on anyone's lawn yet.
- Ringo's father is something of a lousy parent. And her crush is literally an angel.
- Hans Paku von Fersen in episode 7.
- Yuri's father is Soichiro Yagami, while Tabuki's mother is Sailor Mercury
- Looks like Sanetoshi (Yutaka Koizumi) is being much more proactive with his conspiracy theories these days...
- English Version:
- Name's the Same: Where else have I heard about Yuri x Momoka... oh right, HeartCatch Pretty Cure!! Likely unintentional.
- Off Model: Even when the budget is far, FAR bigger than Utena's, there are entire episodes (like the infamous episoe 10) that are horribly done.
- Relationship Voice Actor: This is not the first time Shouma and Kanba's voice actors have played opposites.
- Talking to Himself: The penguins are voiced by the seiyuu of their respective human character that they're "paired" with.
- Trolling Creator: It's Kunihiko Ikuhara, is it not?
Ikuhara (via Twitter): All of you have enjoyed making your predictions. Now, I'll tell you the truth. Yes. Just as all of you have predicted all along: the Penguindrum is a pink washing machine.
- What Could Have Been: Tomoko Kawakami spoke with Ikuhara about working together again, since she played Utena from Revolutionary Girl Utena. Sadly, Kawakami passed away a month before the series was aired.
- The official artbook showed that plans were once made to have Shouma and Kanba wear pilot suits.
- The Wiki Rule: Mawaru Penguindrum Wiki, although it's still at its infancy.