What launches into outer space at the end of Pokémon Pokopia?

A rocket ship launches into outer space at the end of Pokémon Pokopia.

After Ditto and Professor Tangrowth restore habitats and complete the Team Initiation Challenge, a celebration involving party poppers accidentally activates an emergency evacuation protocol. The structure they had encountered is revealed to be a rocket ship.

The launch provides a final connection between Pokopia’s abandoned world and the humans who left it. As the rocket travels through space, it is eventually discovered by a human, implied to be Ditto’s original trainer, who recovers the items carried inside.

The structure can initially be mistaken for a tower because the characters encounter it as part of the mysterious Team Initiation Challenge. Its true identity is revealed only after the emergency protocol activates, making the rocket ship the key answer to this ending-focused question.