I used to crack C64 disk games. They were mostly trivial because I wrote a disk sector editor that would disassemble blocks on demand. One that comes to mind w

I used to crack C64 disk games. They were mostly trivial because I wrote a disk sector editor that would disassemble blocks on demand. One that comes to mind were Ocean’s copy protection that was hacked by a load of 1 into the accumulator and a return. They had a “bool IsValidDisk()” type of routine. After cracking one of their games I could crack others in less than 2 minutes directly on a copied floppy.