Future Trunks after seeing Gohan as a Super Saiyan 2 He increased his strength without losing speed." In the manga version of Dragon Ball Super, Future Trunks' Super Saiyan 2 looks almost like his Super Saiyan form, with the exception of the two thin bangs framing his forehead, which disappear. Bardock's version of the form is the most worth of noting, as he has the hair of a regular Super Saiyan, however, it was corrected for Xeno Bardock, having two side bangs with a middle one longer. Super Saiyan 2 of adult Gotenks is just more spiky as well as Xeno Trunks. In Dragon Ball Heroes, Gogeta's Super Saiyan 2 is remarkably different from his Super Saiyan form, the hair grows more spiky and slightly longer, making it very easy to tell the difference between both forms, while Vegito's Super Saiyan 2 has the same visual looking of young Gohan.
However, in the manga version, his hair stands up and becomes spikier. In Dragon Ball Super, Future Trunks' hair as Super Saiyan 2 does not change from his Super Saiyan in the anime version, a trait that was taken to Dragon Ball Xenoverse 2. However, they are not always present (especially in the anime Gohan and Vegeta lack the trait completely in some episodes) and may sometimes appear on a charging Super Saiyan (such as Vegito) causing some viewers to mistake the regular Super Saiyan form for a Super Saiyan 2. Another notable feature of the form seen in pictures from the manga, some scenes of the show, and almost all Dragon Ball Z video games is the electrical aura many electrical sparks (normally blue, but gold in Dragon Ball Z: Budokai 3 and Dragon Ball Heroes) constantly surround the body, especially when charging up. Even speed is increased proportionally, unlike the Super Saiyan Third Grade state which causes the muscle mass to swell to the point of impeding the user. Muscle mass is barely increased, but energy output is multiplied manifold such that greater amounts of the Saiyan's increased energy reserves can be used at once for much more powerful energy attacks without the onset of exhaustion later. Because the energy output and radiation is higher than that of a Super Saiyan, the aura pulses at a higher frequency. Increased energy radiation causes the aura to take on a jagged, fierce flame-like appearance rather than smooth or flowing. Some users like Gohan, Goku, Vegito and Bardock lose a few strands of hair. The golden hair brought on by the original transformation becomes longer and rigid and stands up even more. The power output emitted by this form is greatly increased as well, as it doubles the strength of the regular Super Saiyan transformation. The second method to obtaining the transformation is simply through harsh training. Even the gentle, polite Gohan became a hotheaded, merciless fighter after transforming, opting to torture Cell rather than kill him, despite Goku's pleas. Because of the intense emotion required to initiate the transformation, any mastery of the Super Saiyan state and mental stability attained therein is negated, and the naturally remorseless nature of the Saiyan race is magnified, requiring them to master the personality adaptations to an even higher degree.
The first method is that the Saiyan must experience a powerful emotional upheaval, much like the Super Saiyan transformation, but to a greater extent. There are two ways to achieve this transformation, a requirement for both is that the Saiyan must first gain a large quantity of energy (usually by training), far beyond that required for the first Super Saiyan form.