Two years ago we had a look at how Nintendo's EarthBound handles illegal copying and other such modifications. As you'll recall, the game makes things increasingly difficult and frustrating in an effort to throw software pirates into agonizing situations. Most video games aren't that inventive or devious. Consider Donkey Kong Country 3: Dixie Kong's Double Trouble also for the Super NES that occasionally checks to ensure that the proper amount of SRAM is available to the game. If it doesn't like what it finds (say, too much or too little which would indicate the presence of a copying device used to backup and pirate games or some other modifier), then the action comes to a halt and this ominous screen appears that combines the Game Over image with the boss battle theme and some brief explanatory text.
Donkey Kong Country 2 pulls a similar trick, but without the background music. Most Nintendo games of the era displayed similar errors and warnings when the integrity of the system was compromised, but few of them went to this level of detail. Titles such as Super Mario All-Stars, Super Metroid, and Super Punch-Out!! merely display a black screen with simple text citing copyright statute, for instance. EarthBound still wins the prize for most inventive copy protection, but DKC3 has to score a few points for the basic effort and creepiness factor alone.