Time to fix all those issues you had with some game in a shiny new remake of it. Or to get a game that casts you as something other than a trainer for once—Professor? Evil team grunt? Another Mystery Dungeon where you are a Pokémon? To play with the Pokémon world and make it darker or cross over with another series, or just have the vanilla world in a different game genre.
Reminds me of Stray, cute and wholesome motivation
oh. Also, Office reference?
Cool idea in general, I always liked Ditto and their transform gimmick. It would be cute if there were some sidequests where you help NPCs, other Pokémon or humans, with your transforming abilities too :) but I understand if that goes against your idea