𝐵𝑎𝑘𝑢𝑔𝑜 𝐾𝑎𝑡𝑠𝑢𝑘𝑖 𖤐⭒๋࣭ ⭑

Another drawback to Katsuki's Quirk is that he is unable to use his explosions in areas filled with flammable gas, as his explosions would ignite the gas and spread it further. Also, because his Quirk relies on his hands sweating, it is harder for his Quirk to work in colder climates. Without the sweat from his palms, he is unable to utilize his Quirk to its fullest potential.

Explosion (Bakuha): Katsuki's Quirk allows him to secrete nitroglycerin through the sweat of his hands and detonate it at will to create explosions.[7] The more Bakugo sweats, the stronger his explosions become.[8] As noted by Best Jeanist, Katsuki has a strong understanding of his Quirk's applications.[9] He usually uses small, powerful explosions from his hands not only to blow up his opponents, but also to propel himself and move through the air, among other non-combat uses. He can maintain the sequence of his explosions long enough to destroy a giant ice wall created by Shoto.[10] The explosions are powerful enough to send opponents flying with little time for them to react.[11] He can use them quickly enough to evade incoming attacks, even in mid-air.[10][12] His most powerful explosion to date (without the need for grenade gauntlets) was used to completely destroy Ochaco Uraraka's meteor shower, sending her flying away with the subsequent shockwave that shook the entire Sports Festival stadium.[13] He later uses it several times in succession when facing All Might in the physical test of the final exam. Katsuki suffers some impact from his explosions due to their magnitude, but the overall effect is minimal given his physical conditioning. He is able to trigger constant explosions around himself without feeling any negative repercussions, even after many powerful blasts. However, excessive use can result in Bakugo injuring his arms from the force of the powerful explosions.

Katsuki is a young man of average height, with a lean, muscular build and fair skin. He has short, spiky, ash-blond hair with choppy bangs that hang over his eyebrows. His eyes are sharp and a bright scarlet. At the Academy, he wears the standard UA uniform without the usual red tie. Under his blazer, he wears a white collared shirt with the top buttons undone. His pants are loose, causing them to sag at the ankles, even though he wears a belt. His hero costume consists of a tight, black, muscle-hugging T-shirt with an orange "X" in the center, forming a V-neck. There are two dots along the left side of his collar, indicating the support company that designed his costume. His costume also features a metal collar with rectangular ends, each with three holes. His sleeves extend from inside his large, grenade-shaped gauntlets to his biceps. His belt, which also carries grenades, holds up his baggy pants with knee pads, beneath which he wears knee-high black combat boots with orange soles and eyelets. His mask is jagged and black, and as it wraps around his eyes, a large, orange-rimmed flare protrudes from each side. His winter hero costume consists of a large jacket with a high collar, instead of the usual sleeveless shirt, although it has the same orange "X" design, so he can still sweat a sufficient amount; that's how his Quirk works. During his internship with Best Jeanist, he wore a pair of tight blue jeans with his hero costume, instead of his usual baggy pants. His hair was also styled and parted to the side during this time.

However, his beliefs differ: Katsuki feels that a hero should never stop fighting or give up, regardless of the threat they face, and that always winning is the mark of a true hero. Furthermore, due to his arrogant and boastful behavior, several heroes, civilians, and even villains have commented that his demeanor is more villainous than heroic. Nevertheless, Katsuki is unwavering in his goal of becoming a hero, having flatly rejected Tomura's invitation to join the Alliance of Villains.

At first, when he was defeated, he went into a kind of shock, and in addition to this, he does not admit that he surpasses others when the fight ends without him delivering the final blow, like when he fought against Ochaco Uraraka in the Sports Festival and they decided to end the confrontation before he finished Ochaco. As the story has progressed, Katsuki's personality has gradually changed. Initially, he was very arrogant and intolerant, but little by little, he has softened his attitude to the point of implicitly showing concern for others, as demonstrated in the provisional hero license exam when he reduced his explosions to avoid harming Denki and Eijiro, or when he waited for Eijiro to return from the battle against the Eight Precepts of Death. He has also shown empathy, as seen in Shoto's case when he secretly listened to his past.

Katsuki presented himself as a very impulsive, aggressive, and arrogant person, as seen in the way he treated Izuku, whom he constantly violated physically and psychologically, even telling him to kill himself, showing his bastardly attitude. He has a superiority complex, always wanting to be the best at everything and trying to prove it at all costs; however, even with these traits, he knows how to admit defeat, as demonstrated during the Battle Trial. At the academy entrance, when Izuku tried to explain that his Quirk, One For All, came from someone else, Katsuki interpreted it as mockery and tried to silence him by saying he simply beat him. [4] In battle, he tends to be quite bloodthirsty and aggressive, even to the point of making the word "shine" a catchphrase. His brutal fighting style is shown in the Battle Trial, where he mercilessly attacks Izuku and recklessly destroys everything in the enclosed environment they are in. Despite this, and regardless of his lack of compassion, he has been recognized for his enormous talent and skill in fighting, as he not only attacks and destroys, but is also able to use his Quirk to move through the air. This was noted by Momo Yaoyorozu, Shoto Todoroki,[5] and All Might himself.[6] Although he isn't the hero with the best character, as the story progresses his behavior slowly begins to mature, becoming less rude and arrogant. As the year goes on, he begins to trust and cooperate with his classmates, whom he previously rejected because he wanted to do everything on his own, neither helping nor expecting help. This egocentrism cost him several mistakes in class that led to his defeat or came very close to it, were it not for his reluctant cooperation with his classmates. His inspiration to become a hero was the same as Izuku's, the symbol of peace All Might.

Katsuki Bakugo(爆ばく豪ごう勝かつ己きBakugō Katsuki?)[2], also known as Kacchan(かっちゃんKatchan?) by his friends and by his hero name God of the Big Killing Explosion Dynamight(大だい•爆ばく•殺さつ•神しんダイナマイトDaibakusatsu-Shin Dainamaito?),