Doraemon - Season 1 Episode 91 Development and Degradation Radiation
Nobita's father is old fashioned, so Nobita uses Doraemon's ray gun to make things as they would have been in the past or future, then starts on living things with a mouse de-evolutionized 200,000,000 years to become a large dinosaur and his father evolved into a future man.
- Genre: Action & Adventure, Animation, Comedy, Sci-Fi & Fantasy, Kids, Family
- Studio: tv asahi
- Keyword: japan, gadget, time travel, based on manga, school life, anime
- Cast: Nobuyo Oyama, Noriko Ohara, Kaneta Kimotsuki, Michiko Nomura, Keiko Yokozawa, Kazuya Tatekabe