Skate Or Die in the C64 was tricky as it had self modifying code for obfuscation. Took me a while to “debug” that. The copy protection of Ocean games was much

Skate Or Die in the C64 was tricky as it had self modifying code for obfuscation. Took me a while to “debug” that. The copy protection of Ocean games was much easier to crack. They had a “IsOkToRun” type of function which returned 1 in the A register.