I don't generally remember Sega games for their villains... when you think about it very few Sega franchises have prominent villains in the first place.
But off the top of my head...
Mortus, The Mystery Man, and Dr. Eggman / Metal Sonic stand out as favorites of mine.
Goldman has So Bad, It's Good qualities as well.
"The difference between reality and fiction is that fiction has to make sense." - Tom Clancy, paraphrasing Mark Twain.
Oh My
Dark Sol because he looks like a rabbit in most of his appearances.
Or maybe Dark Falz/Force/Phallus/Dulk Fakis. He's kind of neat in general beyond his ever changing name hilarity. What with his eldritch abomination status.
edited 30th Apr '12 3:32:57 PM by Aondeug
If someone wants to accuse us of eating coconut shells, then that's their business. We know what we're doing. - Achaan Chah
Eclipse the Moon
TV Tropes' Sonic Wiki Curator
Why, Dr. Eggman, of course. He's the Bowser to Sonic's Mario, after all.
Experience has taught me to investigate anything that glows.
Eggman, no contest here.
edited 30th Apr '12 4:07:33 PM by GearLeader
https://www.youtube.com/watch?v=jXkI1sTDoEg
Eclipse the Moon
Eggman is one of my favorite "Funny Villians" along with Kid Icarus Uprising 's Hades.
He's humourus, but is still a threat.
I'm having to learn to pay the price
Sega itself. :p
Home of CBR Rumbles-in-Exile: rumbles.fr.yuku.com
Nudist Snake
The lack of Selvaria Bles in this thread saddens me, though she's more of an Anti-Villian.
The Dreamcast.
the color today
Sega's greatest villain was either Sony (often credited with knocking them out of the console wars) or Nintendo (their arch-nemesis in the console wars).
Oh, in game? I dunno, Maximilian? I can't take Eggman seriously enough to call him their greatest villain, especially since he seems to wind up working with Sonic every so often.
THE EGGMAN
Easy street has no parking signs.
SEGA's greatest villain was/were themselves. It was their own stupidity that led to Nintendo and Sony crushing them. Not having a dvd playing capability built into the console killed the Dreamcast. Even though it was piss easy to program on.
In game? Sonic.
Bitter person in the shadows....
Wasn't it poor marketing in the US that did Sega in? I don't see how not playing DV Ds is a big deal, but their marketing (announcing the price of the Saturn only for Sony to reveal the Playstation is cheaper, releasing the Saturn early to the point where most stores didn't have it, lack of a Saturn Sonic title, and a limited choice of games to choose from), especially in the US, that killed their chances in the console market.
On topic: Rokkaku Gouji. He's a prime example of a Corrupt Corporate Executive, and was practically going to warp the world in JSRF For the Evulz.
edited 30th Apr '12 7:39:00 PM by KrazyKopter
"Pancakes. Oh, I blew it." - Joel Hodgson Nobody better lay a Butterfinger on my 3DS!
@people saying Dreamcast, Sega, or something similar- Can we please stick to in-game villains? This is supposed to be a parallel to the Nintendo villains thread, and you don't see anyone going in there and saying something like ''Nintendo's greatest enemy is Nintendo!!!!1"
Anyway, I'm also going with Eggman. The man is iconic, and can build all sorts of crazy things, but he usually knows well enough when to put personal feelings aside to combat a greater evil. Runner-up is Selvaria.
The Wanderer
Dr. Eggman and The Vortex.
Eating a Vanilluxe will give you frostbite.
Eggman, Wizeman, etc.
Always looking for a good MMORPG with a great community...
There is only one correct answer, and that is Doctor Robotnik.
Baby!
Inb4 eggman
Never tell your problems to anyone...20% don't care and the other 80% are glad you have them.
Something...
It's gotta be Eggman for me, even though I didn't play that many Sonic games. Although, as of late, he's been getting a bit silly...
https://www.youtube.com/watch?v=yhPN9rF6Ov4
edited 1st May '12 6:14:49 AM by DiurnalBrocolli
Just floating around...
Metal Sonic for me.
ERROR: Signature not loaded
Sonic Team.
How about Joe Fang from the Virtua Cop series? Seriously, he took you on with a military helicopter in the first game, and you get to see his helicopter crash to the ground below. Too bad for the good guys that J.F. has a combination of Never Found the Body and Joker Immunity on his side. Also, he has a corporation titled E.V.L. (get it? Evil?). We got a serious Card-Carrying Villain here! 
What killed the Saturn was its near impossibility for third party developers to make games for it. The Dreamcast was a step change in ease of programming, as it is after all just a PC in a smaller box and thus easy to make games for, once you know the hardware requirements will not change and you know that a new soundcard or video card will not be added in at a later date.
But not having a DVD playing capability, and thus necessitating the purchase of a second box to play what was at the time the hot new video format, was commercial stupidity. Especially when the competing Playstation 2 had DVD ROM capability built in from the start.
The Dreamcast failed among gamers not because of the lack of DVD playback, but because Sony's hype machine in the year leading up to the Play Station 2 launch was unstoppable. I think I've lost count of how many people, both on the Internet and IRL, back in 2000 passed on the Dreamcast because "the PS 2 will be out later this year" and thought all the DC exclusives were going to be eventually on PS 2.* DVD playback was a nice incentive to get a PS 2, but it was in no way a key reason as to why the DC failed.
edited 1st May '12 11:03:14 AM by NeoChaos
Sega has definitely come a long way since it started out as Standard Games in Honolulu, Hawaii back in 1940. At the very least, they came up with interesting villains that are not copies of Nintendo characters!
So to start, I'm going with Sega's star franchise, Sonic The Hedgehog. Dr. Ivo Robotnik/Dr. Eggman is probably Sega's greatest villain, if only because he is so memorable and is as round as an egg!
If there's anyone here who's played a lot of Sega games, why don't you come here and share your thoughts?
Oh, Equestria, we stand on guard for thee!