Overview
Pokemon Pokopia has a single ending with no alternate routes or secret variations. The credits are triggered by completing the Team Initiation Challenge, a multi-part Important Request that spans the entire game. Many players spend 40 or more hours before discovering the game even has an ending, since the open-ended building gameplay never pushes you toward it.
How to Trigger the Ending
The ending requires completing the Team Initiation Challenge. This quest begins at the Team Rocket Hideout lighthouse on the coast of the Withered Wasteland. Throughout the game, you collect badges from various accomplishments and bring them to the lighthouse. Once all badges are collected, the voice inside the lighthouse asks you for two party poppers.
When you submit the party poppers, nothing happens immediately. Professor Tangrowth suggests firing them off outside. When you set off the party poppers near the lighthouse, something unexpected happens: the lighthouse's emergency protocol activates, and the structure reveals itself to be a rocket.
The Rocket Launch
The lighthouse transforms and blasts off into space, carrying with it the items you placed inside throughout your journey. This sequence transitions directly into the ending credits.
The Credits Sequence
During the credits, the camera follows the rocket as it travels through space. Eventually, the rocket approaches a space pod containing a Ditto plush. A figure in a space suit emerges from the pod and retrieves the contents of the rocket, including the photograph that Ditto sent off. This person is heavily implied to be Ditto's original trainer, the human who left Ditto behind when humanity evacuated Earth.
The scene suggests that while the trainer received Ditto's message, the lore scattered throughout the game indicates humanity's escape was a one-way trip. There was not enough fuel for a return journey, making it unclear whether the trainer can ever come back to Pokopia.
After the Credits
After the credits roll, the game returns you to your island. There is no post-credits scene or New Game Plus mode. You can continue building, befriending Pokemon, and completing remaining requests. The ending does not lock you out of any content.
Tips
The ending is entirely optional. You can play indefinitely without ever triggering it.
Make sure to complete all the badge-collection tasks before submitting the party poppers.
There is only one ending. No decisions you make throughout the game change the outcome.