Following in the footsteps of manga such as Doraemon and Obake no Q-Taro in that the alien Ganmo (who resembles a chicken wearing sneakers) sets out to help his adopted human friend Hanpeita.
Unfortunately the movie Gu-Gu Ganmo is not yet available on HBO Max.
| Sound | Miki Matsubara | Theme Song Performance |
| Visual Effects | Naoto Takahashi | Key Animation |
| Visual Effects | Fujihiko Hosono | Mechanical Designer |
| Writing | Tokio Tsuchiya | Screenplay |
| Visual Effects | Takayuki Goto | Key Animation |
| Visual Effects | Kazuaki Mori | Key Animation |
| Visual Effects | Hiromi Niioka | Key Animation |
| Visual Effects | Masaki Kajishima | Key Animation |
| Visual Effects | Koji Ito | Key Animation |
| Visual Effects | Satoru Iriyoshi | Key Animation |
| Visual Effects | Koji Fukasawa | Key Animation |
| Visual Effects | Takeo Kitahara | Key Animation |
| Visual Effects | Hiroyuki Kitakubo | Key Animation |
| Visual Effects | Toshiyuki Inoue | Animation Director |
| Visual Effects | Masami Shimoda | Key Animation |
| Visual Effects | Tadashi Shida | Key Animation |
| Directing | Akinori Nagaoka | Director |
| Visual Effects | Katsuichi Nakayama | Key Animation |
| Visual Effects | Yoshiharu Fukushima | Key Animation |
| Visual Effects | Nobuetsu Ando | Key Animation |
| Visual Effects | Masayuki | Key Animation |
| Visual Effects | Makoto Ito | Key Animation |
| Visual Effects | Emi Hoshino | Key Animation |
| Visual Effects | Iku Ishiguro | Animation Director |
| Visual Effects | Takeo Kitahara | Animation Director |
| Art | Yoshiyuki Yamamoto | Art Direction |
| Sound | Kan Ogasawara | Music |
| Visual Effects | Takao Kôzai | Character Designer |
| Sound | Hiroshi Ogasawara | Music |