If you loved Zatch Bell! 101st Devil, try One Piece: Clockwork Island Adventure
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Both films are directed by Junji Shimizu, and they both carry the playful mood tag, and they sit in Action / Adventure / Animation territory. If that's the register that drew you to Zatch Bell! 101st Devil, the second film will land in a comparable space — through a different lens.
playful
What One Piece: Clockwork Island Adventure is
You chill on a beach with the Straw Hats, enjoying downtime. But the Going Merry gets snatched; Luffy's treasured hat goes, too. They're both nabbed by the Trump Pirates. Director Junji Shimizu knows the value of scarcity; this entry runs lean at just an hour long.
Ask 
ChatGPT
Claude
Grok
Le Chat
Perplexity
for a deeper bridge
ChatGPTClaudeGrokLe ChatPerplexity