Keep the run focused
The official listing describes the overall sequence: search the Potato Mountain, find the key, unlock the Vault, and escape. It does not document extra endings or a precise exit route.
Use in the current game
Use the hidden key as the transition from searching to the Vault objective. Follow the in-game prompts for the final escape step. Record the version and your own route if you are comparing attempts; the listing only confirms the goal, not a best path.
