Bear with me here: Pokémon has always had an environmentalist subtext. As you wander its verdant, creature-filled worlds, collecting species like an acquisitive David Attenborough, you are constantly shown that people and Pokémon should live in harmony. The bad guys in these stories, from Team Rocket to Bill Nighy in the Detective Pikachu film, are always the ones who want to abuse these creatures for personal gain. Otherwise you are shown that people must have respect for Pokémon; both the critters you catch and the ones that exist in the wild. There is a delicate independency between humans and the natural world. In this new spin-off from the series, we see what happens when there are no humans around. You, a shapeshifting blob of jelly called Ditto, awaken in a half-demolished wasteland that was once, presumably, a lively town. There are some other Pokémon around, confused and lonely, and together you work to restore the place and make it beautiful again. Taking the uncanny humanoid form of your half-remembered former trainer, you learn useful talents …