Disk Hacker II - Copy Plus 3 is an unlicensed Japanese NES game. It is a sequel or a significantly updated version of the previous Disk Hacker games. The 'Copy Plus 3' addition might imply enhanced copying capabilities.  Further details on its creator or the exact function of the game are obscure due to its unlicensed status and lack of readily accessible information.

Disk Hacker II - Copy Plus 3 (Japan) (Unl)

Disk Hacker - Version 1.0 (Japan) (Unl)