Final Fantasy 2 Pixel Remaster The Emperor Hitless

There are a lot of broken mechanics in this game, luckily most of them are broken in favor of the player. Meet the Blood Sword, a weapon that drains at least 1/16th of an opponent's health, up to 9,999. It seems to scale with the character's sword level, so someone with 16 levels in sword drains 16/16 of a foe's health, rounded down. With a bit of luck or an overpowered character you can absolutely solo the last boss without taking any damage. In the original version there were two blood swords, making it even easier.
Gameplay footage used: final fantasy 2
Music used: final fantasy 2
Music recommendation: Speed Me Towards Death by Rob Dougan