GameShark is the bran name of a line of video game cheat cartridges and other products for a variety of console video game systems and Windows based computers. Currently, the brand name is owned by Mad Catz, Inc., who actively market GameShark products for the PlayStation 2, PlayStation Portable, Xbox, Nintendo DS and Game Boy Advance (including the SP and Micro models). The GameShark products have never been licensed or endorsed by the manufacturers of the products that they work with. Originally a cheat device that modified memory data, under the ownership of MadCatz the device has since become a dedicated game save storage device.