Longest solution to a videogame boss battle

Longest solution to a videogame boss battle
Who
The End
What
7 day(s)
Where
Not Applicable
When
17 November 2004

The longest solution to a videogame boss battle is "The End" from Metal Gear Solid 3: Snake Eater. If the player saves the game during the boss battle, they can turn off the console and wait a full week – at which point the boss will die of old age.

Metal Gear Solid is famous for its boss battles, and "The End" is perhaps the second most iconic behind "Psycho Mantis".