Ditto first meets Tangrowth, who serves as its research partner in Pokémon Pokopia.
This Tangrowth uses the name “Professor Tangrowth” and has taken responsibility for studying the damaged environment. The character helps frame the game’s mystery: why did humans and Pokémon leave, and what caused the world to become so difficult to inhabit? Tangrowth’s research gives the restoration work a narrative purpose beyond decoration.
The partnership begins after Ditto discovers the abandoned world and takes on a human-like form. Together, Ditto and Professor Tangrowth investigate the landscape, assist Pokémon, and restore habitats. Tangrowth therefore functions as an important guide and story companion rather than simply appearing as an ordinary wild Pokémon.
Tangrowth is sometimes confused with other grass-type Pokémon because Pokopia includes several plant-associated characters. However, the first major research partner is specifically Tangrowth. Its vine-covered design also fits the game’s environmental themes and reinforces the connection between Pokémon life and habitat recovery.