Ephemeral Dream (うたかたの空夢 Utakata no Sorayume) is the 42nd episode of Ultraman Dyna.
- Ultraman Dyna Volume 11 features Episodes 41-44.
- The arrow that marks Mountain Gulliver 5 when it is on the launch ramp is removed in the Blu-ray release.
- This episode was later featured in Ultraman Retsuden episode 20 "Dispatch the Giant Robot! Mountain Gulliver 5!!".
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