Hilarious In Hindsight / Birdy the Mighty

• In the original manga, after getting caught by Gomez trashing some robots, with the help of Tsuotmu, Birdy rattles off a Sailor Moon-esque speech (though the original manga does predate Sailor Moon). In the OVA, Birdy was voiced by Sailor Moon's seiyuu herself.
• Shyamalan's death at the hands of Sayaka after the Ryunka complete possesses her is a lot more unintentionally hilarious to watch when you remember that their seiyuu, Kenichi Suzumura and Maaya Sakamoto, are now married, which also augments the No Yay undertones between those two characters
• In the OVA series, Birdy is followed by someone who turns out to be a talent scout, thinking she could be a model. In Decode, Birdy has a disguise as one.
• There's an episode in which a little girl who defends a boy from bullies at a refugee camp Tsutomu and his friends visit sparks a debate among the boys about whether it's humiliating to have to be saved by a girl. In Heat Guy J, an earlier work by Kazuki Akane, two of the important men have the following exchange:
  You have to be saved by a woman? That's so pathetic.
  It's not every day you get saved by an angel.
• Yutaka Izubuchi served as the creature designer for the OVA adaptation. He would also serve as the creative producer for Decode.
• One of the tracks for Decode is named "Wonder Woman". Not only did Zack Snyder admit that Decode was an influence for the Superman/Zod battle at the end of Man of Steel, but in the DC Extended Universe, Yuko Kaida (Moss) is the dub voice actress for Wonder Woman and Kotono Mitsuishi (Birdy herself in the OVA series) narrated a trailer for Wonder Woman (2017).

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