Never let your energy reach zero unexpectedly. It is more efficient to end a session early and "rest" than to face a recovery penalty.
If the game fails to save progress, ensure you are running the executable with administrative privileges. robozou+doll+play+walkthrough
For more community-driven strategies and specific item lists, players often share detailed spreadsheets on niche gaming forums or repositories like various project pages . Never let your energy reach zero unexpectedly