Bojack Character Facts

Bojack is a ruthless Hera-jin who would stop at nothing to conquer the universe. He committed most of their genocidal tendencies in the Dormideous Sector and could only be impeded by being locked inside of a star by the Kais of the universe, where he would remain for thousands of years. However, with King Kai's death following the destruction of his planet during the Cell Games, the link holding Bojack trapped is shattered, leaving him unbound to make his escape.
Bojack is shown to have a bloodthirsty personality, as he mentions upon revealing himself to Gohan that it has been a long time since he "snapped someone's neck." He is also known to have little to no loyalty to his own comrades, as evidenced when he killed Zangya the moment she showed signs of fear, and due to her being in the way between him and Gohan. He is also shown to be quite arrogant, as he firmly believes that he can defeat Gohan, and is prone to getting very angry when it becomes apparent that he is having difficulty fighting against Gohan.
Bojack's Race of Hera transformation displayed in Bojack Unbound is similar to the Super Saiyan transformation. His skin turns from blue to green, his hair turns red, and his strength and power greatly increase.