There were even quite a few games from the 80s and 90s that required you to use the manual in order to play with translations, instructions, sometimes even hidden codes to move forward.
there would almost always be a moment where you’d use the manual to answer a password and that was their copy protection. that kind of copy protection continued into the 90s
Up to the late 90s at least, Metal Gear Solid had a moment where, in order to progress, you had to enter a codec frequency that was in the back of the CD case.
There were even quite a few games from the 80s and 90s that required you to use the manual in order to play with translations, instructions, sometimes even hidden codes to move forward.
there would almost always be a moment where you’d use the manual to answer a password and that was their copy protection. that kind of copy protection continued into the 90s
Up to the late 90s at least, Metal Gear Solid had a moment where, in order to progress, you had to enter a codec frequency that was in the back of the CD case.