N-Joypad
The N-Joypad or CD3900 is a Famicom clone manufactured by the Hong Kong-based company Advance Bright Limited (ABL). There's no AC adapter, with the console running from four AA batteries. This console is different from other clones because it does not use cartridges, relying instead on discs of different sizes resembling compact discs. When the player inserts one of these discs on the system, it triggers a combination of switches on the system allowing a unique selection of Famicom games to be chosen. The system includes a total of 59 games, which are either original games produced in China, or pirate versions of licensed Famicom games with hacked music and/or graphics to hide their origin. Included games 
The list below shows the names of the games as they appear on the selection menu of the system, followed by the original Famicom title and publisher. References 

Unlicensed Nintendo Entertainment System hardware clones