Manage a group of bottle collecting grandmothers and send them to collection gigs around the city. Take into account the strengths of the grandmothers when leaving for the task and gather experience as well as money. From retirement home retirees, you can even hire rare or legendary grandmothers whose special skills are a significant advantage on the field. While you wait for the gigs to end, work out with your grandmothers or go back to returning bottles.
The game automatically saves your progress.