Some video game bosses are purposefully designed to be very beatable – they tend to be the ones that allow us to progress through a game's story.
Others deliberately pose a real challenge. Maybe they test our wits, our perseverance, and with ever-improving AI, our strategy - but ultimately we are rewarded with a feeling of pure elation when we finally beat them.
Then there are these guys, who are just there to frustrate.
Sure, the developers entice us with the dangling carrot of a rare item, a super weapon or a hidden playable character, but sometimes the sheer effort to overcome these optional challenges is just not worth the blood, sweat, and mostly tears that we shed.
So difficult and outrageous are they, that if we ever do finally fell these collective spawns of Satan, we just find ourselves collapsing in a puddle of our own fury, questioning why the developer dared to create such a monstrosity in the first place.
For completionists, the word 'optional' in Optional Boss is a cruel misnomer, but even the following battles were hardly worth the hours spent wallowing in defeat.
10. Sephiroth – Kingdom Hearts
When Sephiroth surprised us all as the Platinum match inside the Olympus Colosseum of Kingdom Hearts, our excitement at hearing his award-winning theme music quickly dissipated after we struck him several times only to discover his HP was so high that we were in well over our heads.
It's not even the HP that's the real problem. Okay, so it might take awhile to whittle him down, but that's fine so long as we have space and time to do it.
Sephiroth's damage is brutal, constantly requiring us to run away and heal ourselves before we try again, only to get hit again and have to start fleeing once more. Even that would be sort of acceptable, except the arena you fight him in is only slightly larger than Sephiroth's masamune blade in the first place.
Huge amounts of health, high attack and almost impossible to dodge. And what's the reward for all this? A bronze trophy.