Welp, I'm at the end of Luigi's Mansion for GC, and on the final fight with Bowser/King Boo. Which is an annoying fight because you have to suck up the spiky balls that Bowser throws at yo, then shoot them when he's about suck you up.

If hit, his head falls off and you have to suck up King boo. Which has 500!!! HP. While sucking him up you have to avoid Bowsers floating head that spits fireballs at you. Very annoying to say the least lol

it's a beautiful day outside, birds are singling, flowers are blooming. on days like these people like you.....


Waste your lives like me trying to beat sans from Undertale.

I hate Sarelgaz from Kingdom Rush,  unbelievable 21600 health and a ridiculous instant kill attack. Which means you can stop her with your soldiers.



 
 



 

The final boss at the ending of Mario and Luigi Bowser Inside Story that one particular boss was just so tedious to beat that after a while it became annoying. In fact it was a lot harder than beating the final boss in Mario and Luigi SuperStar Saga and you start off with just one health for both Mario and Luigi when you face the final boss. 

The final battle with the Ogre in Ogre Battle: March of the Black Queen is pretty rough if you don't have all of the best characters, and even then, just getting to him is tough, because there is no end to the armies that are sent your way while trying to get to it.  Most of the Resident Evil Bosses from 4 and 5 are a nightmare on the more difficult levels.  I am still stuck on the giant you have to fight in part 5 while riding in the truck and trying to shoot him. 

The blob of bodies and body parts in Castlevania: Symphony of the night drove me insane for a few hours. I hate bosses that throw hordes of minions at you while you have to fight the boss simultaneously. It's just plain tedious

Nice thread! Many bosses are annoying, imo, such as Morpha from OOT, Twinmold from MM3D, Morpheel from TP and more. Morpha is such a pain in the butt when you're boss rushing. You have the hookshot instead of the longshot, and it will take you more time to defeat the beast. Running around in circles, using the hookshot, getting caught... AHH! As for Twinmold, well the 2nd phase is the worst. All the bosses in Majora's Mask 3D are a complete joke, except for that one. You're dead if you don't have the defense upgrade. Do you know how much damage does it do to you if you have upgraded defense? 2 hearts! Without the upgrade? 4 HEARTS!! *Snif*, even the Fierce Deity cannot beat it easily...

Morpheel's 1st phase is pretty annoying. It will use its tentacles grab you, and then it will throw you away, causing 1 heart damage. If you're playing on Hero mode, plus the Ganondorf amiibo enabled, then it will cause you 4 hearts damage. The listed bosses are not hard, but they're annoying.

One that immediately comes to mind is, like you said, Jinpachi, so annoying, put a lot of time in to that fight, haha.

That was a great game, though.

Man, why do so many people have trouble with Seymour from FFX? If you don't have any Null spells, I guess... Just cast Null spells on your party, he attacks in a pattern, scan can tell you, and make sure all of your Aeons have full overdrives. Summon them, unleash, watch them die, summon the next one... Well, that's not what this thread is about... But, speaking of Final Fantasy...



I would also nominate the Spectral Keeper from FFX. He has attacks that aren't in the turn counter, sometimes he counterattacks, sometimes he gets free attacks. And having to move around to not get hit by mines sucks... I used the same strategy as Seymour though, Aeon overdrive and watch them explode. XD

Also, any kind of Malboro or Lord Ochu, just tons of deadly status in one attack. That's messed up, man. XD

Sephiroth from Kingdoms Hearts... I hate any boss that just has a reduce to 1 hp and no mp attack.

I'd also nominate the optional boss battle in Fullmetal Alchemist and the Broken Angel for the PS2. Where at the end, you fight Mustang and Armstrong. Unless you save all your exp crystals, and max out every stat, and have beaten the game, like, 7 times, you'll do 1 damage every hit... I actually wanted to see if I could win. I ended up using every healing item, everything on the map, multiple times, and the best I did was get both of them to change their attack pattern, which means they were close to being beaten, but I never beat either of them. I actually had to take a break from fighting, because it was taking so long. I think I spent about 5 hours doing it, and still lost... So, that was pretty annoying to me. XD