If you loved Yona Yona Penguin, try Pokémon Mystery Dungeon: Team Go-Getters out of the Gate!
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.

Yona Yona Penguin

Pokémon Mystery Dungeon: Team Go-Getters out of the Gate!
What they share
Theyboth carry the cozy, playful mood tags, and they sit in Adventure / Animation territory. If that's the register that drew you to Yona Yona Penguin, the second film will land in a comparable space — through a different lens.
What Pokémon Mystery Dungeon: Team Go-Getters out of the Gate! is
A human wakes up as a Squirtle—no memory, no warning, just a panicky Charmander yelling into a dark cave like a tiny, scaly emergency broadcast. The duo stumbles into a world where Pokémon run agencies, assign missions, and apparently treat job applications with the seriousness of a volcanic eruption. Honestly, it’s impressive how much diplomacy a blue turtle in a cape can accomplish before breakfast.