Hacker or Disk Hacker as the title screen says was created by Hacker International. It was sold on the black market for the Famicom Disk System. Hacker International are best known for their adult games like Lip-Stick #1-5 and Famicom games Idol Shisen Mahjong and Miss Peach World.
 
 

The Hacker V1.2 is able to copy most if not all original and pirate Famicom disks using a single system with AN500R drive.

Once Nintendo found out about the Hacker and other software using the same method to copy disks. They updated drives in the systems and the Hacker would no longer boot. Hacker International later came up with Hacker V1.3 which is said to work on all versions of the Famicom Disk System.