Unreasonably Difficult Bosses?

[Maniakkid25]

TAKE TWO!

Bosses. You know them. They are the climax of an area, ending off in a flurry of battle. A necessary inclusion in just about any game. And yet, there are some bosses that are difficult. Very difficult. And I don't mean "It's easy if you do this mechanic." I mean "Even for the game that it's in and doing it the right way, this boss is HARD!" These are the kinds of bosses that make lazy top 10 lists for "the most difficult evah!" and fill the TV Tropes page for That One Boss.

For the inspiration of this thread, I turn to this post I made about Digital Devil Saga's New Game+ Bonus Boss: The Demi-Fiend. Now, there are actually a lot of things that combine together to make this one of the hardest JRPG bosses ever put to polygons, so there's really no way for me to avoid making this a Wall O' Text™. Apologies in advance.

Why This Guy is So Damn Difficult

So, to start with, the fight has rules! Yes, you have to play by his rules, otherwise he just instantly kills you. See, in DDS, you can freely set up your 8 skills using a pool of skills you've unlocked previously, and some of these do useful passive stuff like, say, nullifying damage. If you bring ANY skill that nullifies, absorbs, or reflects ANY type of damage (Excluding Null Critical and Null Sleep -- more on that second one in a bit), he attacks using a move that deals 9000+ damage in a game where you only have 999 health, and if you somehow survive, he just spams it until you die. Did I mention that he also has instant-kill attacks that you are not allowed to nullify? Because he has instant-kill attacks that you're not allowed to nullify!

Next up is the fact that you can't actually damage him with standard attacks. See, he's based on the super secret final form you get in the game he's from, and that form nullifies ALL damage that isn't Almighty damage! Yes, it's that broken! Oh, we still haven't gotten to the actual fight, yet! To start with, this guy has a crit rate that is through the fucking roof. Like, legit, it's something like 90%. This in a game where you get free turns if you land a critical hit! And he gets an extra turn for free to begin with, because screw you, that's what SMT does!

Oh, and that's not including his friends! See, he has two demons that he summons at the beginning, and if you kill one, he just cycles to the next one on the list. He does this INFINITELY, never losing turns to revive a fallen demon, because why not? And when he gets to Pixie and Parvati in the cycle, that's when the Russian Roulette wheel spins! See, remember that Null Sleep skill I mentioned? It doesn't actually nullify the sleep condition, but instead makes you automatically dodge all attacks if you are put to sleep. This is where it becomes important, because Pixie and Parvati, when summoned, will cast the Sleep spell, and then the boss will use his uber-over-9000 attack that he reserves for when you break the rules! He only does this once per summon, but if you don't get slept, then you just die, no saving throw, too bad!

This is all on top of the usual SMT crap you're used to by now, such as instantly dispelling buffs and debuffs, and losing turns because OOPS, the game rolled a botch and your opponent dodged the attack! And just to put the cherry on the ice cream sundae of bullshit, his Pixie and Parvati have a full-heal spell that they will use one time when the guy hits half health. For reference, he has 18000 health.

Now, besides one or two psychos who managed to beat this guy at level 20, there has only been one strat that has been developed to be able to beat him with anything resembling consistency: The Red Star Strategy. Named after the user who developed it, the original post has been lost to time, but it's well-known enough to be google-able. It basically involves stalling out his Pixie so it runs out of MP, and then going for the kill. Even with this strat, it's a SLOG of a fight, easily taking upwards of 30 minutes at the fastest!

Oh, and your reward for this punishment? An equip you only get after importing your save to Digital Devil Saga 2. It's a good equip, no doubt, but not worth the price of admission!

[Moonface]

I really have to question that One Boss trope page and some of the entries. Like, Tiny Tiger in Crash Bandicoot 2? Really? That is not remotely close to "one boss" territory. It is not hard to realize you jump away from him and lure him to jump somewhere that a platform is about to fall down so he falls too.

I will agree with the entry for Delirium from The Binding of Isaac though. That thing is horrible and people have begged for it to get a rework because of how broken it is. I've only ever defeated it by having a run so utterly broken it doesn't get time to hurt me.

Also I just finished playing a game that might get one of the freshest entries in this thread, which although I don't know the name of it it was a boss in Dungeon Clawler. This piece of shit ended my entire run like it was nothing and I could do nothing about it. Every turn it stacked 3 poison onto me, and also stacked 3 heal per attack onto itself. It has 400hp, and each turn it gets to attack 5 times. Here's how its turns went:

1. Attacks 5x for 4 damage each time, which I block but it still heals for 15 (5x3) and at the end of the turn inflicts 3 poison damage on me. Any damage I did was pretty much all healed. 
   
2. Attacks 5x4d but now heals 6hp per attack, so now it heals 30hp. I can't even deal this much damage in two turns. I also now get 6 poison damage. 
   
3. Heals 45hp, gives me 9 poison. 
   
4. 60hp, 12 poison. 
   
5. 75hp, 15 poison. 
   
6. 90hp, 18 poison. 
   

I had no chance by the second turn in this fight but this was how far I held out before my health could no longer hold up from the damage coming in. Even if I could avoid the poison, there is no way I could ever deal enough damage. It so blatantly wasn't tested...

[Moonface]

I forgot about this one at the time I last posted but it's so notorious if you know the game that I have to mention it; the Benoit boss fight in Silent Bomber.

The video sums up everything I could write about it. I remember this fight absolutely slaughtering me as a kid and when I watched this video a while back I didn't remember anything but the chess part. I don't even know if the Benoit part of the fight is actually hard because of him as a boss or if it's hard because the screen becomes such a mess. This is also one of those wonderful bosses that are a ball ache from start to finish and if you die, it's all the way back to the first phase of the entire fight.


@Maniakkid25: As much as that first rule sucks, at least you'd find out the instant you start the fight rather than say, the skills requiring activation first before triggering an instant kill and using the skill a while into the fight. That said, I'm guessing there is nothing to indicate why you get instant-killed right out of the gate so you're somehow expected to eventually figure out it's due to bringing in forbidden skills?
Reading the rest of it, good lord I can't imagine any game having a fight as bad as what that sounds. I'd be surprised if speed runners even touch a run that includes the fight and they're the people I'd expect to find the most bullshit way of beating it.