Legendary Super Saiyan (Dendetsu no Sūpā Saiya-jin) is a unique transformation rather than a title. It is also very rare. (Only one Saiyan is said to be born with this power once every thousand years or so.) In Broly: The Legendary Super Saiyan, the audience is introduced to Broly, who is (as the title suggests) the Legendary Super Saiyan, a warrior that tales tell is truly the strongest fighting being in history. Broly's final transformation puts him in a class of his own. The result is a Super Saiyan with a seemingly endless supply of ki.
Beyond his initial Super Saiyan transformation, Broly's final form is very similar to a 3rd Stage Super Saiyan, but without the same physical flaws of massive chi consumption and speed loss. This form has many advantages when compared to the other Super Saiyan forms, as it requires no chi consumption, gives the user phenomenal strength and speed, and constantly raises the user's power as long as they remain in the Legendary Super Saiyan form. In this form Broly's size, muscle mass and power therein are far beyond that of any regular Super Saiyan (the ground quakes beneath his feet as he walks). His aura becomes electric green in color, and is so forceful that it can displace solid matter. During the initial transformation, there were bio-electrical discharges comparable to lightning bolts due to the sudden massive increase in energy flow and steady increase of power, which will overwhelm the user if it is allowed to continue, but these dissipated when Broly's power stabilized by releasing a large wave of energy to burn up the excess in order to prevent his energy from overflowing. Additionally, his irises and pupils seemingly disappear (metaphorically this is called "blind rage").
His transformation magnifies the power of all of his attacks, without drawbacks. In fact, Broly was so powerful, that he was able to take down two Full-Power Super Saiyans, two 2nd Stage Super Saiyans, and a Super Namek. He also battles Super Saiyan 2 Gohan in Broly: Second Coming and completely dominates, though to Gohan's credit, Gohan's blows managed to cause Broly some injury, enough for him to be able to escape Broly's grip.
It is also stated in the OVA, Plan to Eradicate the Saiyans that a Legendary Super Saiyan destroyed the Saiyans' original home planet.
As already stated, Broly's appearance in this form is, at first glance, not much unlike that of a Super Saiyan 1 Stage 3. However, there are several notable physical differences. For example, Broly's muscle mass becomes greater than that of a 3rd Stage Super Saiyan. In order to maintain this increment of muscle mass proportionate to the body, Broly's height also increases substantially. When in this form, Broly's pupils and irises become seemingly invisible, making him look much more maniacal than he already does. They stay this way as long as Broly remains in this form. Broly's hair in this form is very wild and glows green in color; it would later be a natural, golden-yellow when the effects of a control device on his head wore off.
Powers and abilities
In this form, Broly grows to enormous size. His power, speed, strength, energy, and endurance increase drastically, and continue to do so as long as he remains in the form.
This form is also one that is quite unique to Broly (as it is a genetic trait), as he is the Legendary Super Saiyan. It is a form that has very little disadvantages and allows Broly to overwhelm all but the most powerful opponents. Broly's power level not only shoots upward tremendously, but it also steadily increases as long as he stays in this form. Since the power level in this form is so vast, Broly has been shown to take extremely powerful attacks without so much as flinching. For example, in his first appearance, Broly fought two Full-Power Super Saiyans, 2 2nd Stage Super Saiyans, and a Super Namek all at the same time and was in control of the whole fight, with his opponents being unable to hurt him in the least. Even a Kamehameha from Goku at point blank range didn't do anything to Broly. It was only after everyone donated their powers to Goku that Goku was able to surpass Broly in power and put him out of commission temporarily. In his second appearance, Broly goes head to head with Super Saiyan 2 Gohan. While Gohan is able to damage Broly slightly more so than anybody from the first appearance was, Gohan still finds himself to be overwhelmed greatly, and Broly is only taken care of with some help from Goku, Goten, and Trunks.
Broly's attacks are also unique. In terms of physical attacks, he prefers to use wrestling moves to overpower his opponents rather than using lots of fast and powerful punches and kicks like most other fighters in the series use. He often uses clotheslines, crushing moves, grabs, and other such moves (he can also perform fast attacks, but prefers the physical moves above instead). His energy attacks are also one of a kind. They are all a light green shade in color, and there are three main types of attacks that he uses. One type is a small, single ball of energy, which he controls much like somebody would control a toy remote helicopter or airplane. He uses this to make it a lot more difficult for his opponents to get away from his attacks. Another type is a large number of these blasts all thrown at one general target at the same time. Broly uses this attack to blow up cities, as well as to aim at enemies that he wouldn't be able to hit very well with the single ball of energy. His third, and most dangerous and powerful, energy attack, is the one that starts off as a compact sphere of energy, but upon hitting its target, it turns into a enormous sphere of energy with huge destructive power. Broly has used this attack to destroy planets as well as to counter attacks.
- Every time Broly transforms into his Legendary Super Saiyan form he causes the sky and the environment to change color twice often ending in a gray/dark blue look.
- In Broly: The Legendary Super Saiyan, Broly's hair momentarily turned a lime-green color just before he turned into the Legendary Super Saiyan.
- It is believed by many fans (based on how easily Broly overtook his opponents in his appearances) that this form puts Broly's strength somewhere around a Super Saiyan 3's.
- There are still many arguments as to who really is the Super Saiyan of legend (not the suggested form). Its obvious that Broly is the so called, "Legendary" Super Saiyan because of his odd yet astounding power, but on the other hand, Goku reaches almost all of the known levels of the Super Saiyan form (besides the Legendary Super Saiyan, for obvious reasons). Throughout the series there have been many different stories about the true legend, some very different from others. Of course, Broly and his transformation was made exclusively for his movie, and thus should not be considered canon. However, we'll never truly know who is the Super Saiyan of legend.