Ultimecia is the main antagonist of Final Fantasy VIII. A powerful Sorceress from a future many generations ahead of the game's time, Ultimecia intended to compress time into one single moment with a form of magic known as Time Compression. She used a time-machine like device called "Junction Machine Ellone," as a means to send her consciousness into the distant past. In the past era, Ultimecia manipulated world events, and utilized her ability to possess other sorceresses.
The first sorceress known to have fallen under Ultimecia's control was Edea Kramer. Ultimecia resided within Edea's body for a long period of time in order to enact her Time Compression. In her final confrontation with Leon, she attempted to absorb all that ever had and ever would exist, including all time and space, but her ambitions were ultimately thwarted at the hands of Leon and his friends.
Ultimecia dones a skin tight red satin ball-gown with a plunging neckline that ends just over the crotch, exposing her neck, chest, stomach and abdomen; only partially obscuring the breasts. A black fur ruffle travels the edge of the bodice to travel along the collar, the ruffle is largest behind the neck, resting over her shoulders and covering the junction of her black feathered wings (it is unknown wether the ruffle is attached to her wings or just rests upon them). The hemline extends to drag along the floor behind her. Red long-blouse sleeves join with her taloned hands, which are colored purple.
Her shoulders are padded to extend just beyond her hip-line. Exposed skin (face, torso and legs) are moderatly tattooed with lined patterns. Jewelery is present with a gold necklace around her neck. Additionally, there are earings and hair jewelery amongst a headdress designed to pull her hair up to resemble horns while silver bangs are left free to hang down past her hip as they frame her face. The most striking feature of which are her yellow eyes set amongst purple eye shadow, the afore-mentioned tattoos and deep-red lipstick. She wears no footwear, instead walking (or perhaps flying) barefoot.
Ultimecia is a manipulative force who acts through the bodies of other sorceresses for much of the story. She has been described as a malevolent sorceress from many generations in the future; filled with anger and hate. She is capable of sending her mind back through time with a special Junction Machine. Additionally, she can influence the minds of other people, completely altering them into mere agents of her will. Ultimecia is also aware of the fact that she is destined to face a "Legendary SeeD." According to the Final Fantasy VIII Ultimania, Ultimecia's actions may be a means to escape her destined defeat at the hands of this Legendary SeeD. Her knowledge of this fate could be the main instigation for her desire of bringing about the phenomenon of "Time Compression," by which all time would merge. Through her spell she could absorb all time, space, and existence, and become "a living god," incapable of dying. With this power, she would be completely omnipotent, and could control all time, space, and existence, effectively preventing her demise.
It is made clear from her inauguration speech in Deling City that she has suffered through intense persecution. Future generations were aware of the coming of Ultimecia because of her failure to complete Time Compression. They likely reacted by targeting all sorceresses for persecution and isolation, because of the fear that any one of them could eventually become the "cold-blooded tyrant" that Ultimecia speaks of. Ultimecia was condemned for crimes she had not even committed yet. This prejudice and condemnation (and perhaps the actions that spawn from such states) is perhaps what prompted her into becoming a wrathful sorceress. Sadly it is Ultimecia's desire to alter time and escape this fate that fulfills the terms of her destiny. Her downfall at the hands of Leon and his comrades perpetuates the cycle that will lead to the formation of SeeD and the continued persecution of Sorceresses unto her era.
Ultimecia has a definitive sense of style, and she demonstrates it very often. The interior of her castle is filled with faux-Victorian opulence, even containing an impressive art collection. While possessing Edea Kramer she dresses in a skin-tight violet evening gowns with luxurious feather collars and accessorizes with ornate headdresses and a large golden ornament on her back, bedecked with floating strips of rose-colored gauze. Every time the player encounters her within Edea, her decorative touch is in plain sight. In Deling City her waiting room is draped with silk curtains while in Galbadia Garden she reclines on a throne designed to look like a translucent flower, with white lights visible through the crystal, similar to the fronds of luminescent sea kelp.