Master B8tr is a credit card company in Grand Theft Auto: San Andreas. It rivals PISN and Pla$tic. Its name and logo are based on MasterCard, Maestro, and Cirrus. The logo can also be seen on page 13 of the San Andreas manual and on the ATMs in the mission "Small Town Bank". The name is a pun of the word "masturbator" and the real MasterCard brand.