Hiro Hamada is a young boy with intelligence far beyond his years. Because of this, he can be rather brazen and cocky (especially when he was seen to be bored on during his bot fight with Mr. Yama), but never to the point of arrogance. He spends much of his time using his technology to win money through illegal bot fights (although he claims that bot-fighting isn't illegal, but betting on it is. Regardless, he still does it illegally), something he prides himself on, though his older brother Tadashi heavily disapproves. Whilst Tadashi feels his brother has a greater purpose and should attend college, Hiro believes he holds the knowledge of all that there is to know in the world, showing a strong sense of pride. Despite his bold nature, Hiro has a much softer side to him, as he's shown to be rather shy in front of crowds and during the process of making new friends, as well as awkward at times. Even so, his compassion is mostly seen when dealing with his older brother Tadashi who, despite his brotherly nagging, holds a special place in Hiro's heart as the latter's best friend and inspiration. When with Tadashi, Hiro's true colors are shown; showing him to be free-spirited, innocently sassy, warm and ultimately very loving and appreciative. Such aspects wouldn't be seen again until the void left by Tadashi's demise is eventually filled by the lovable Baymax, who cares for Hiro in the same sense, forming a strong companionship. However, underneath his kind heart lies a darker core. At certain points during the movie, the boy genius would allow his anger to cloud his better judgement and commit acts normally out of the question.