Dark Souls- 12
Dark Souls II- 13
Dark Souls III- 18
Dark Souls II
I'm just going to throw this out there and say that I think this boss has the worst run up to it. Those dang whip guys, and then the red phantom before the fog gate, no thank you!
Once you enter the boss's lair you quickly discover that the boss is moving too quickly for you to do anything about it. This dude is riding in his chariot around and around the arena being pulled by his twice hellhorses (is that even a thing?) and attempting to run you down.
What you've got to do is make your way forward, popping into small alcoves when he gets close to you. This sounds exceedingly simple, until you discover that a bunch of skeletons like to keep reanimating and come after you. Once you take down the necromancers they stop, and then you are free to pull the lever at the end of the arena.
This causes a gate to come slamming down, killing the Executioner and freeing his horses, who you can then proceed to wail on. They do have some powerful kicks, but otherwise don't present much of a problem.
This guy has a unique gimmick, and I'm all about ingenuity when it comes to boss designs. The arena is cool, and the skeletons are not too terrible a distraction (especially since the chariot likes to kill them just as much as it does you), and the boss itself looks pretty cool. The only reasons it's this low are because 1) that run to it and 2) I simply like the remainder better.
42) Vordt of the Boreal Valley
Dark Souls III
Depending on whether you count Gundyr from the tutorial, Vordt will be your first experience with a DS3 boss. After you wander into his lair and discover the exit is blocked, this huge, lumbering beast drops down to say hello.
Vordt is an impressive looking boss, and pretty intimidating the first time you see him. His powerful quadruped body already looks like it can tear you apart, but he's got to take it up a notch by dragging a MASSIVE hammer. This guy is aggressive to start the fight, but at about half health he goes full on beast mode.
Vordt is pretty easy to dodge if you're good with your timing, and if you'll notice he's got a generously large backside. Stick to that thing like glue and you're golden.
Lore wise, Vordt used to be one of Pontiff Sulyvhan's Outrider Knights who was given a Pontiff's Left Eye ring, which slowly transforms its wearer into a mindless beast. It also says that he and the Dancer served alongside one another as well.
41) Taurus Demon
So you've made it through the Undead Asylum with no problems, and the Undead Burgh isn't too bad. You're learning the ropes of this new game everyone has raved about, and you can't understand the horror stories you've been hearing about it's difficulty. Then you walk through a fog gate, and emerge on to a long bridge with a gorgeous view.
Suddenly, a giant minotaur-like beast jumps down to the bridge and begins lumbering towards you. Some people then run at it and decimate this guy.
My first playthrough, I was not one of those people.
See, I missed the ladder next to the entrance where you can climb up and defeat some archers that will otherwise provide an extreme effective nuisance while you're dancing around the Taurus Demon. You can also perform a plunging attack from this vantage point for some high damage output.
I can beat this guy really easily now, but I'll never forget my first real roadblock in this beloved series.
40) Old Iron King
Dark Souls II
The last entry in the bottom half of the boss list (sort of) is the Balrog of Morgoth... Whoops, wrong fantasy franchise.
The Old Iron King has some of the most epic lore in Dark Souls II. An unestablished lord was approached by Sir Alonne, a great warrior, who helped this king establish an empire. The king built the Iron Keep, a fortress made entirely out of iron, and became obsessed with maintaining an indomitable empire.
After the Undead Curse afflicted his kingdom, the Iron King led so called "Undead Hunts". Eventually his servant, the pyromancer Eygil, creates the Smelter Demon, who strikes down the king. As the king died his fortress began to sink into the molten rock underneath, and a great evil that lurked below possessed the fallen lord and turned him into the monstrosity we encounter in game.
The Old Iron King is not really a difficult fight. He has pretty well telegraphed attacks, largely stays in one spot, and if you need a quick breather, you can run around the side of the small for a second or two. When the guy does attack you, for whatever reason he leaves himself wide open for attacks. Not really sure why.
The biggest threat in the whole are is that you are on a tiny platform surrounded completely by lava. To make matters worse, you can't even hug the wall, because there is a huge hole for you to fall or get knocked in to. Let's face it, that's happened to everyone at least once.