While Nobita is sleeping, he suddenly feels the floor is trembling, like there would be an earthquake in his room. A little rabbit from an alternate universe named Chamii opens the door between the dimensions using a hammer and gets inside Nobita's room through the floor. Nobita wakes up and Doraemon hears somebody steal food from the fridge in the kitchen. It is Chamii, who gets caught by Doraemon and Nobita. She shows them the passageway through Nobita's floor into the spaceship. After they enter the spaceship, they see Koya Koya Planet. They meet a boy named Roppuru.
| Directing | Shigeo Koshi | Director |
| Visual Effects | Tomohiro Nishiyama | Compositing Artist |
| Art | Toru Minatani | Background Designer |
| Art | Reiko Ikeda | Background Designer |
| Visual Effects | Shizue Kaneko | Supervising Animation Director |
| Camera | Katsuyoshi Kishi | Director of Photography |
| Art | Shigeo Koshi | Storyboard Artist |
| Art | Kozo Kusuba | Storyboard Artist |
| Art | Tetsuo Yasumi | Storyboard Artist |
| Visual Effects | Yumi Chiba | Animation Director |
| Visual Effects | Yoshihiro Osugi | Animation Director |
| Visual Effects | Naoyuki Asano | Animation Director |
| Writing | Yuichi Shinbo | Screenplay |
| Visual Effects | Nobuyuki Koyanagi | Key Animation |
| Visual Effects | Keiichiro Honjo | Key Animation |
| Visual Effects | Toshiharu Kudou | Key Animation |
| Visual Effects | Yuji Shibata | Key Animation |
| Visual Effects | Daisuke Mataga | Key Animation |
| Visual Effects | Masashi Okumura | Key Animation |
| Visual Effects | Yuki Ito | Key Animation |
| Visual Effects | Yukari Watanabe | Key Animation |
| Visual Effects | Yui Enomoto | Key Animation |
| Visual Effects | Ikuno Yagi | Key Animation |
| Visual Effects | Hideaki Furusawa | Key Animation |
| Visual Effects | Nobutake Ito | Key Animation |
| Visual Effects | Takahisa Ichikawa | Key Animation |
| Visual Effects | Satoru Utsunomiya | Key Animation |
| Visual Effects | Yuichiro Sueyoshi | Key Animation |
| Visual Effects | Katsumi Hashimoto | Key Animation |
| Visual Effects | Yoshihiko Takakura | Key Animation |
| Visual Effects | Masami Otsuka | Key Animation |
| Visual Effects | Yasuko Sakuma | Key Animation |
| Visual Effects | Shizuka Hayashi | Key Animation |
| Visual Effects | Shuichi Seki | Key Animation |
| Visual Effects | Masaru Ooshiro | Key Animation |
| Visual Effects | Riwako Matsui | Key Animation |
| Visual Effects | Osamu Miwa | Key Animation |
| Visual Effects | Shigehito Tsuji | Key Animation |
| Visual Effects | Katsunori Shibata | Key Animation |
| Visual Effects | Mieko Seki | Key Animation |
| Visual Effects | Motonobu Hori | Key Animation |
| Visual Effects | Hiroko Yaguchi | Key Animation |
| Visual Effects | Takeshi Kuwahara | Key Animation |
| Visual Effects | Masahiro Kurio | Key Animation |
| Visual Effects | Kouichirou Ueda | Key Animation |
| Visual Effects | Akira Matsui | Key Animation |
| Visual Effects | Mayumi Nakamura | Key Animation |
| Visual Effects | Kyoko Niimura | Key Animation |
| Visual Effects | Fumiaki Kouta | Key Animation |
| Visual Effects | Koichi Yagami | Key Animation |
| Visual Effects | Ayano Shimizu | Key Animation |
| Visual Effects | Takuji Mogi | Key Animation |
| Visual Effects | Madoka Ozawa | Key Animation |
| Visual Effects | Gosei Oda | Key Animation |
| Visual Effects | Daizo Iwanaga | Key Animation |
| Visual Effects | Yuko Yamada | Key Animation |
| Visual Effects | Yumi Chiba | Key Animation |
| Visual Effects | Hirokazu Ishino | Key Animation |
| Visual Effects | Jun Uemura | Key Animation |
| Visual Effects | Aya Takano | Key Animation |
| Visual Effects | Takeshi Yamazaki | Key Animation |
| Visual Effects | Miki Wasada | Key Animation |
| Visual Effects | Hiromi Hata | Key Animation |
| Visual Effects | Makiko Shinohara | Key Animation |
| Art | Akiko Ishida | Background Designer |
| Production | Takanori Okano | Production Assistant |
| Visual Effects | Masahiro Kumagai | Compositing Artist |
| Production | Susumu Nakajima | Production Assistant |
| Production | Mariko Kawanishi | Production Assistant |
| Writing | Fujiko F. Fujio | Comic Book |