The Sega Genesis system had a rather interesting game. X-Men (1993) was based on the popular cartoon version of the comic book series. But it had what was still one of the most unique (and unintuitive) mechanisms I've ever heard of. In the second to last level, the game asks you to "reset the computer". The strange thing about this is there's no in-game way to do this, and many people would get frustrated with the inability to progress to the game's final level. But the reset mechanism the game wants you to activate is the console's reset button
Now years after attempting, failing and just moving on to other games, I happened to find the answer. This was years ago, by the way. To reset the computer- the player had to press reset on the Sega Genesis console. Yes. I was taken aback. It felt like a slap in the face. Not only was the player supposed to think outside the game cartridge, but they were supposed to do something NO gamer in their right mind would ever think of doing for fear of losing progress in the game.
And to top it off- if you pressed it for even a fraction of a second to long, the game would do exactly that- reset the system and you'd lose your progress. So gamers were supposed to tap the reset button which brought up a screen full of numbers and then moved you on to the next level.
The reset button should clear the console's memory. How did the game manage to survive pressing the reset button AND know that that was what had happened?