What emergency structure launches into space near the end of Pokémon Pokopia?

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

After Ditto and Professor Tangrowth restore habitats and complete the Team Initiation Challenge, they celebrate with party poppers. The celebration accidentally activates an emergency evacuation protocol hidden within a mysterious structure.

The structure is revealed to be a rocket ship. It launches into outer space carrying items connected to the abandoned world, including the photo Ditto sent off. The event provides a major plot connection between the restored Pokémon world and the humans who left it.

The rocket is not introduced simply as a vehicle for ordinary travel. Its launch reveals that the evacuation system and the human departure were part of a larger plan involving a computer system designed to preserve Pokémon after humanity left Earth.