Changes

All game cartridges (and the system cartridge shipped with the 464+/6128+) include an ACID chip, so, with even with limited soldering skills, it's extremely easy to reuse that chip with other EPROMs. So, Which is meaning that the protection doesn't prevent piracy or homebrew programming. It's only preventing commercially produced unlicensed games (which are more than unlikely to be sold with instructions saying to "de-solder your ACID chip before using this game").