Akuma-kun and his friends go to the Makai Amusement Park to solve the child kidnapping case caused by an autonomous mysterious toy. An original work for the theater of the Toei Manga Festival, which is an animation of the original manga by Shigeru Mizuki.
Unfortunately the movie Devil Boy: Welcome to Devil Land!! is not yet available on HBO Max.
| Visual Effects | Satoru Iriyoshi | Animation Director |
| Writing | Yoshiyuki Suga | Screenplay |
| Directing | Junichi Sato | Director |
| Crew | Shigeru Mizuki | Creator |
| Visual Effects | Hiromi Niioka | Key Animation |