Bakugo is a crude, arrogant, short-tempered, and aggressive person, Bakugo' s Quirk is Explosion , which allows him to make explosions from his hands by detonating the nitroglycerin-like substance he sweats
 
He tends to come off as unheroic; this problematic behavior going all the way back to his early childhood days when he was known to bully a young, Quirkless, Izuku Midoriya.