Once you choose your rat, you have the option to explore the different places including Town, City, School, and Market. In each of these places, you’ll need a rat that needs a certain amount of cheese to feed rats and tame them. The goal is to tame all the rats in all the areas. However, the rats eat cheese. The more rats you have, the more money you have to spend on cheese. Once you tame all the rats, you can get a job at a Café, Market, Hospital, Flower shop, and Mall to get money.