If you loved Space Adventure Cobra: The Movie, try Lupin the Third: Napoleon's Dictionary
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.
You already loved

Space Adventure Cobra: The Movie
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Lupin the Third: Napoleon's Dictionary
What they share
Both films are directed by Osamu Dezaki, and they both carry the playful mood tag, and they sit in Action / Animation territory. If that's the register that drew you to Space Adventure Cobra: The Movie, the second film will land in a comparable space — through a different lens.
playful
What Lupin the Third: Napoleon's Dictionary is
Here's a film about what happens when a cartoon character inherits something. Lupin III is after a dictionary that supposedly leads to his family's hidden fortune. He enters a car race to win the artifact, with the world's governments also in hot pursuit. It's a cartoon.