Katsuki Bakugo⁰²

Explosion (爆破 Bakuha ?): Katsuki's Quirk allows him to secrete nitroglycerin through the sweat on his hands and detonate it at will to create explosions.[7] The more Bakugo sweats, the stronger his explosions become.[8] As stated by Best Jeanist, Katsuki has a strong grasp on the applications of his Quirk.[9] He often uses small, powerful blasts from his hands to not only blast his opponents, but to propel himself and move through the air as well, among other non-combat uses. He is able to maintain the sequence of his explosions long enough to destroy a giant ice wall created by Shoto.[10]

The blasts are powerful enough to send opponents flying without much 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 blast yet (without the need for the grenade bracers) was used to completely destroy Ochaco Uraraka's meteor shower, and send her flying away from him with the following shockwave that shook the entire Sports Festival stadium.[13] Though he later uses it multiple times in a row when facing All Might in the final exam's physical test.

Katsuki suffers some impact from his blasts due to their magnitude, but the overall effect is minimal given his physical conditioning. He is able to trigger constant blasts around him without feeling any negative repercussions, even after multiple powerful blasts. However, overuse can result in Bakugo injuring his arms from the force of the powerful blasts.

Another drawback of 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.

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.

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. 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 on display in the Battle Trial, where he mercilessly attacks Izuku and recklessly destroys everything in the enclosed area they are in. Despite this, and regardless of his lack of compassion, he has been recognized for his enormous talent and fighting prowess, as he not only attacks and destroys, but is also capable of using his Quirk to move through the air. This is highlighted 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 defeat or came very close to it, were it not for his reluctant cooperation with his classmates. His inspiration for becoming a hero was the same as Izuku's: the Symbol of Peace, All Might. However, his beliefs are different: 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.

Katsuki presented himself as a very impulsive, aggressive, and arrogant person, as seen in his treatment of Izuku, whom he constantly abused both physically and psychologically, even telling him to kill himself, revealing 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 entrance of the academy, when Izuku tried to explain that his Quirk, One For All, came from someone else, Katsuki interpreted this as mockery and tried to silence him by saying that he had simply beaten him. 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 on display in the Battle Trial, where he mercilessly attacks Izuku and recklessly destroys everything in the enclosed area they were in. Despite this, and regardless of his lack of compassion, he has been recognized for his enormous talent and fighting prowess, as he not only attacks and destroys, but is also capable of using his Quirk to move through the air. This has been noted by Momo Yaoyorozu, Shoto Todoroki,[5] and All Might himself.[6] Although he is not 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 for becoming a hero was the same as Izuku's: the Symbol of Peace, All Might.