Twitter user Wanikun really, really, really did not want to part with his save of Umihara Kawase.
Certain cartridge game suffered from a flaw where the save within the cartridge would die once the batteries were dead. Wanikun had a novel solution for this: he kept his console on for nearly 20 years.
He did have to unplug the console once while moving but managed to hook the game back up before he lost his save but still, he calculates that the console has been running for nearly 180,000 hours.
[Source: Rocket News24]