If you loved Fire Tripper, try Doraemon: Nobita's Dinosaur
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
Theyboth carry the tender mood tag, and they sit in Animation / Fantasy territory. If that's the register that drew you to Fire Tripper, the second film will land in a comparable space — through a different lens.
tender
What Doraemon: Nobita's Dinosaur is
An animated kid borrows a time machine to out-stubborn a schoolyard rival. Nobita digs up a dino egg, then raises the pet before accidentally sending it 70 million years back. The movie stops just short of teaching paleontology.

