Duel! 80 vs Seven (激ファイト! 80VSウルトラセブン Geki Faito! 80 VS Urutorasebun) is the 44th episode of Ultraman 80.
- Ultraman 80 Volume 11 Features Episodes 41-44.
- A slightly high-pitched, off-vocal version of the music from The☆Ultraman: Monster Requiem, is used for the climax of the battle.
- Ultraseven's stock footage is used from The Secret of the Lake, Search For Tomorrow, and The Erased Time.
- The Ultraseven figure prop that Naoto used is a King Zaurus Series Ultraseven figure, which is manufactured by Popy (now known as Bandai).
- When 80 carries Delusion Ultraseven's body away, the Ultraseven prop is slightly larger than 80's flying prop.
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