If you loved Doraemon y los piratas de los mares del sur, try Doraemon: El gladiador
Un puente entre una película que ya has visto y una que casi nadie ha cruzado. Esto es lo que comparten, y lo que la segunda hace que la primera no hace.

Doraemon y los piratas de los mares del sur

Doraemon: El gladiador
Lo que comparten
Both films are directed by Tsutomu Shibayama, and they both carry the cozy, playful mood tags, and they sit in Adventure / Animation / Family / Fantasy / Science Fiction territory. If that's the register that drew you to Doraemon y los piratas de los mares del sur, the second film will land in a comparable space — through a different lens.
What Doraemon: El gladiador is
One imagines the studio pitch meeting involved a whiteboard and the word "robots." Our heroes visit a planet where robots and humans live together, until the Robot Kingdom's Empress tries to reprogram the robots. It's up to Doraemon and Nobita to sort things out, as you might expect.