Personality-wise, Nnoitra is extremely rude and lecherous, accented by his snake-like eyes and perverted attitude towards Orihime, rudely referring to her as "pet-sama". He even went as far to ask Ulquiorra Cifer how well he "taught" her. He is quite possibly the most foul-mouthed character in the series, even more so than Grimmjow. He is also a firm believer in male chauvinism and openly insults (and regularly attacked) the former 3rd Espada, though it's unknown if he holds the same grudge toward Tia Harribel. His overall goal is to prove himself to be the absolute strongest of the Espada and does not wish to waste his time killing those he dubs "weak". However, he has no qualms attacking stronger opponents who are already injured, a trait both Ichigo Kurosaki and Grimmjow Jaegerjaquez berate him for. He also loathes looking weak, and thus, will refuse all forms of assistance offered to him during an ongoing battle, as seen when he struck his lone Fracción, Tesla, for running over to his side (and releasing Orihime Inoue in the process) after Nnoitra was blasted by Nelliel's Cero Doble. He does, however, appear to have at least some amount concern for his sole Fracción's well-being (unlike Grimmjow, who did not even mourn for his deceased companions), having attempted to warn Tesla to withdraw from battle after he determined via his pesquisa that Kenpachi Zaraki was stronger than he had initially anticipated.
One of Nnoitra's most notable characteristics is his insatiable bloodlust and hunger for battle, which exceeds even Grimmjow's and rivaled only by Kenpachi Zaraki's philosophy of literally living to fight time and again. Nnoitra's idea of a fulfilling end to his life would be to die on his own two feet while drowning on his own blood. Because fighting is his way of life, he continually strives to be stronger, and it is later revealed that he considers himself indebted to Aizen for allowing him to exceed his natural fighting limits. To appease his craving for a good fight, he even defies a direct order from Aizen to patiently lie in wait for Ichigo Kurosaki and his friends when they try to infiltrate Las Noches in a bid to free Orihime Inoue.
In his later moments during his battle with Kenpachi Zaraki, he begins to show signs of weakness and desperation, and becomes increasingly frustrated over his inability to overcome the powerful Captain. This stems from an inferiority complex he developed while serving as 8th Espada, due to his apparent inability to beat his opponents. Whenever his opponents refuse to kill him during a battle, particularly Kenpachi and Nelliel, Nnoitra takes it as a direct affront to his pride, because in his mind, neither Nelliel nor Kenpachi seem to think of him as their equal or superior. This shows a more honorable side of him as even he wishes to be treated as equally as every other opponent he has treated. Ironically, he treated virtually everyone of his opponents the same way, unfairly and through dishonorable methods. He also does not hesitate to use any means -even unfair ones- in order to prove his superiority in the battlefield.
Specialty:
Master Swordsmanship Specialist: Nnoitra is highly masterful with his unique zanpakutō. He uses his skill to become somewhat of a savage brute, as the lack of true law in Hueco Mundo allowed him plenty of opportunity to engage in battle against Hollows and other Arrancar alike. His love of battle is unsurpassed among the Espada. He effortlessly wields his large zanpakutō with ease, taking advantage of its unique shape to maximize his attacks. He is highly capable of using it as a ranged projectile as well as he does with it in hand. He is commonly seen using brute strength to hack and batter down an enemy's defense.
Enhanced Hierro: Nnoitra holds the self-proclaimed title for the strongest Hierro of all Arrancar (including the Espada past and present) allowing him to withstand almost any attack with no sign of injury. Despite this arrogant claim, his skin does not, by far make him impervious to attacks or is impenetrable as he claims it is; presumably, his Hierro's influences over his entire body is not uniform for every proportion as Nel Tu in her adult form cut through his chest with no visible difficulty (likely due to her prior combat experience with him.) Kenpachi Zaraki also eventually found the necessary requirements to harm him after a brief trial-and-error duel, sharpening his reiatsu in order to cut through Nnoitra's Hierro. This showed that while his Hierro is strong, all the opponent has to do in order to overcome it is by "adapting" to it's density (with their own reiatsu.)
Enhanced Pesquisa: Nnoitra is also very different when it comes to using his Hollow powers as an Arrancar. For example, most Arrancar's Pesquisa (ability to sense people with Spiritual Pressure) normally works by using a meditative state and functions like sonar, while Nnoitra needs only to put his hand to a grounded surface. His Pesquisa is even able to gauge the amount of spiritual pressure an opponent has, which he uses to identify potentially strong opponents; this ability could also be classified as an Arrancar ability due to Isane Kotetsu using a similar ability to sense the four Gargantas being sealed off. It is unknown if this version could be used to accurately sense Reiryoku levels.
Cero: His Cero attacks are uniquely golden, and fired from the tip of his tongue as opposed to using his hands, mouth or fingers like most other Arrancar do.
Bala: Nnoitra can use Bala blasts, which hardens the user's spiritual pressure and fires it like a bullet from their fist. It is a faster, but weaker variation of Cero.
Garganta: Being the 5th Espada, Nnoitra has the ability to use Garganta. It literally tears open the dimensional fabric separating the worlds, revealing a tunnel of whirling, torrential energy that must be focused and solidified to create a discernible pathway.
Immense Spiritual Power: Nnoitra has an incredibly high Reiatsu, able to fight on par with Kenpachi Zaraki, a captain well known for high reiatsu. It is because of this high spiritual power, Nnoitra had the stongest hierro of any Espada, and was just below the power level of the top 4 Espada; The top 4 are strong enough to destroy Las Noches simply by releasing their power.
Enhanced Strength: Despite his thin and fragile appearance, Nnoitra is frighteningly strong and can effortlessly wield his large zanpakutō with devastating results. Just by spinning his zanpakutō by the chain-link he can create whirlwinds.
Sonído: Nnoitra has been shown to use Sonído in battle, but his skill level with the technique is unknown. He is fast enough to overwhelm a battle-worn Ichigo using his Bankai.
Brujería (Hollow Powers):
Hollow Ranks and Abilities
Zanpakuto:Santa Teresa
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