Yeah no horror games, since they always have creepy bosses :P

For me.... Marx from Kirby Super Star was scary, he was really creepy with his demented laugh... but then Kirby Super Star Ultra was released... and so was... Marx Soul.

That guy is creepy, basically it's a zombie form of Marx only more stronger, more creepy and more insane!
Like at first he doesn't seem scary, but he teleports all over the place and when ever he does he lets out a super creepy demented laugh... even more demented then before. Hs attacks are strange and creepy, like splitting in half to attack you, making a black hole and planting giant cacti! But it gets creepier...
When you finally kill the thing.... he splits in half. Not like before, He splits in half and releases a bloodcurdling scream that sounds like he's being ripped apart (Which he is lol)

But... even though I only played several minutes of this game... Earthbound's final boss... Giygas.
Because of the mixed age on the site, I'm not going to say why he is creepy, disturbing and scary.
I'll tell you a little, The music sounds demented, it's not even music it's all these noises. The fact that he corrupts Pokey to be even more corrupt then before (Look what happened to him in Mother 3!) Ness, Paula, Jeff and Poo all leave their bodies and have their souls put into robots so they can travel into the past to defeat a weaker Giygas. There are even more reasons, like the Fetus theory (Again, not going to say what that is because of the mixed ages on the site) and what Giygas was based off, and his quotes.(Still not going to say)
So if you wanna know more, either look it up or ask me via PM.

So what do you guys think is the most scariest boss in video games?

Hmm...I'm gonna say the Skull Kid in LOZ: Majora's Mask. He has a Creepy Laugh, Moves Creepily and Acts like a Child. If an Evil creature acts like a Child, that is freaky >.>

Also, even though it isn't a boss, the Moon from MM aswell. Seriously, that thing has the Evilest grin ever. The only thing it's missing is an innocent voice

I never got a cance to play MM sadly, I wasn't a Zelda fan when I was young xD I'll have to buy it. But I've heard like The mask's incarnation theme. Sounds so creepyyy

I played it on an emulator, well, as far as the First Dungeon on an Emulator before getting bored XD

No Piggsy is then creepiest bossz

creepiest boss, well when i was younger i used to play prince of persia, the second one, and i used to always freak out when that weird shadow thing came, but that was when i was younger

what about Dagorth Ur from Elder Scrolls

Yeah, things are scarier when you're younger, Phoenix. I once had a Dream that had something to do with Mace Windu from Star Wars and Some kind of Mutant Shark Pack that scared me when i was about 5...now i lol at it XD

Also, I find Phantom Ganon to be kind of creepy in LOZ:OOT

Riley One things that freaks t he hell out of me now and I'm 16 is Ultimecia from FF 8

Mine's Sigma from Megaman games. I dunno why XD. I just get the feeling of fear when I battle him making me lose focus and interest then I change another game and only defeat him when someone is around. ^_^

Now that i think about it, Sephiroth's Transformation from Sane to Crazy was creepy aswll...he just randomly started hacking away at things XD Then he burned down a Village...cus he didn't like why he was created i think >.>

ganadorf in TP when hes a 6ft beast while on all 4's,he goes in a portal and you have to look around for him so you can knock him over and attack his stomach in wolf mode,if you dont he charges smashing crap and impales you with his horn

then theres the queen bug in TP :pale: scares the crap outta me,comes from no where shooting eletricity,its HUGE and shows every detail of a gross queen beetle

FFVII advent children, when that huge monster comes and attacks all the main characters, it looks scary

Isn't Advent Children the Movie, not a game?

Right Now, The Minoru Elite Four Member Two should get the most votes.