Broly's Stages
As the maniacal Legendary Super Saiyan, Broly's strength and speed extraordinarily excel that of any Super Saiyan, and he was described by Vegeta as being the most powerful Saiyan in all of history. In order to maintain the great increment of muscle mass proportionate to his body, Broly's height also increases by a great amount after transforming, which is shown when the Legendary Super Saiyan form erupts from underneath the flesh of his previous form.
His power level also rises on several occasions found throughout the film, though whether this is caused by the form of if it is simply Broly increasing his power level is up to debate. Additionally, the irises and pupils in his eyes seemingly disappear, giving an even more menacing look than most Saiyan transformations. During one scene in Broly - The Legendary Super Saiyan, it is implied that Broly must release some of his power in order to maintain his body's physical stability, meaning that there initially is a limit to how much his power level can increase at one time. The Legendary Super Saiyan form erupts from underneath the flesh of his previous form. This form is also one that it is unique to Broly due to being a genetic trait. It is a form that has very little disadvantages and allows Broly to overwhelm his opponents. Broly's power level not only shoots upward tremendously, but it also increases a few more times over the course of the film. Since the power level in this form is so vast, Broly has been shown to take extremely powerful attacks without so much as flinching. The form's effectiveness is shown in full force as he fought two Full-Power Super Saiyans, two Ascended Super Saiyans, and Super Namek all at the same time while remaining in control of the whole fight, with his opponents being unable to hurt him in the least. Broly is powerful enough in this state to destroy a planet with a single energy sphere. As demonstrated in Broly - The Legendary Super Saiyan, Broly is unfazed by Goku's Kamehameha, which even at point-blank range results in Broly simply laughing it off. Shortly after, Piccolo joins in the fight and gives the doomed Z Warriors Senzu Beans. Then Piccolo and Goku attack Broly with a barrage of punches and kicks, which have also have no effect. As a last resort, Goku instructs the other Z Fighters and Vegeta to lend him their energy. After that, Goku defeats Broly by focusing all the power the Z Warriors gave him into one punch. Though this attack appears to destroy Broly, it is not fatal, as he reappears on Earth during Broly - Second Coming, where Gohan can hardly hold his own against the Legendary Super Saiyan. In his Super Saiyan 2 transformation, Gohan is able to inflict some damage to Broly, but not enough to shift the battle in his favor. During the battle, Broly is also capable of surviving lava as a Legendary Super Saiyan, as shown when he emerges from a lava pool shortly after Gohan tricked him into being caught in it in a last ditch effort of defeating him. It is unknown if he can survive lava in his Super Saiyan form, but seeing as how Goku did in the Frieza Saga, it is very likely that Broly can survive as well.
His power level also rises on several occasions found throughout the film, though whether this is caused by the form of if it is simply Broly increasing his power level is up to debate. Additionally, the irises and pupils in his eyes seemingly disappear, giving an even more menacing look than most Saiyan transformations. During one scene in Broly - The Legendary Super Saiyan, it is implied that Broly must release some of his power in order to maintain his body's physical stability, meaning that there initially is a limit to how much his power level can increase at one time. The Legendary Super Saiyan form erupts from underneath the flesh of his previous form. This form is also one that it is unique to Broly due to being a genetic trait. It is a form that has very little disadvantages and allows Broly to overwhelm his opponents. Broly's power level not only shoots upward tremendously, but it also increases a few more times over the course of the film. Since the power level in this form is so vast, Broly has been shown to take extremely powerful attacks without so much as flinching. The form's effectiveness is shown in full force as he fought two Full-Power Super Saiyans, two Ascended Super Saiyans, and Super Namek all at the same time while remaining in control of the whole fight, with his opponents being unable to hurt him in the least. Broly is powerful enough in this state to destroy a planet with a single energy sphere. As demonstrated in Broly - The Legendary Super Saiyan, Broly is unfazed by Goku's Kamehameha, which even at point-blank range results in Broly simply laughing it off. Shortly after, Piccolo joins in the fight and gives the doomed Z Warriors Senzu Beans. Then Piccolo and Goku attack Broly with a barrage of punches and kicks, which have also have no effect. As a last resort, Goku instructs the other Z Fighters and Vegeta to lend him their energy. After that, Goku defeats Broly by focusing all the power the Z Warriors gave him into one punch. Though this attack appears to destroy Broly, it is not fatal, as he reappears on Earth during Broly - Second Coming, where Gohan can hardly hold his own against the Legendary Super Saiyan. In his Super Saiyan 2 transformation, Gohan is able to inflict some damage to Broly, but not enough to shift the battle in his favor. During the battle, Broly is also capable of surviving lava as a Legendary Super Saiyan, as shown when he emerges from a lava pool shortly after Gohan tricked him into being caught in it in a last ditch effort of defeating him. It is unknown if he can survive lava in his Super Saiyan form, but seeing as how Goku did in the Frieza Saga, it is very likely that Broly can survive as well.
Broly Super Sayian 3
In the Raging Blast series, Dragon Ball Z: Dragon Battlers, and Dragon Ball Heroes, Broly achieves the Super Saiyan 3 form. The look of this form is much like Broly's movie exclusive Legendary Super Saiyan form. He has great muscle mass, eyes which lack pupils, pale skin, and a greenish yellow hair color. Additionally, Broly lacks eyebrows in this form, and has the trademark long Super Saiyan 3 hairstyle. For some time before the release of Dragon Ball: Raging Blast, there was rumor of Broly's Super Saiyan 3 form is a unique "Legendary Super Saiyan 3" form. This rumor was supported by the fact that Goku, in one of the later trailers, said in a surprised tone Densetsu Supa Saiya-jin Suri, which translates to "Legendary Super Saiyan 3". However, Broly is simply referred to as "Super Saiyan 3 Broly" within the game