The N-Joypad is a Nintendo Entertainment System clone manufactured by the Hong Kong-based company ABL, which is different from other clones because it does not use cartridges, instead relying on "compact discs" (which are actually pieces of plastic) of different size. When the player inserts one of these discs on the system, the disc will trigger a combination of switches on the system which will allow a unique selection of NES games to be selected. The system includes a total of 59 games, which are either original games produced in China, or pirate versions of licensed NES games which with their music and/or graphics hacked to hide their origin.