It is called Fancy Mouse. In Malaysia it is known as Mickey Mouse(pretty silly)

I used to breed them a lot. They cost RM3. The white with black patches is the normal colour. It is called Spotted or Pied. But petshops here don't know these anyway.

Do not get males. It is damn damn smelly. Get 2 females, they love to have companion. If you get a male and female, you will have about 8 babies every month.