Broly is a calm, introverted Saiyan with a pure heart, he grew up alone on a desolate planet with his father, who unbeknownst to him, only saw him as a weapon. However, after being found by Cheelai and Lemo, he and his father, Paragus, was taken into the Frieza Force. Frieza used Broly to battle Goku and Vegeta, however, to speed up the process, he kills Paragus in front of Broly, causing him to go completely berserk, his power is tremendous, and it grows and adapts incredibly fast.