The Saiyans, also known as Saiyajins are a warrior race who shared Planet Plant with the Tsufurujins. Using their ability to transform at a full moon the Saiyajins over powered the Tsufurujins and gained control over the planet. The Saiyajins made one of them, named Vegeta, king of the planet and reanamed the planet as Planet Vegeta.
The Saiyajins soon went into business taking over other planets and selling them. Soon Freeza, an evil alien warrior, feared the Saiyjins potential and destroyed their home word killing their whole race except for four of them. The remaining four were Goku, Vegeta, Raditz, and Nappa. (There were also more survivors; four more Saiyajins named Turles, Paragus, Brloy, and Tarble; and two Tsufurujins named Baby and Dr.Raichii).
Later on, Half-Saiyajins were born on Earth. Gohan was the first but he was soon followed by Trunks and then Goten.
Great Ape - Every Saiyan with a tail is capable of this transformation. When they look into the full moon they transform in a large ape like creature which drastically increases their strength and durability while losing all sense of self and becoming feral. Great Ape's typically can use an Energy Blast from the mouth as a means of ranged attack. Great Ape transformations increase a Saiyans power 10 times. Even so, half blooded Saiyans like Gohan can become a Great Ape, so long as they have a tail. With training or a high enough power level a Saiyan can maintain control of his Great Ape form like Vegeta showed during his battle with Goku on Earth.
Users - All full blooded Saiyans and Gohan
Golden Great Ape - A Saiyan who has already become a Super Saiyan(see below) can become this golden variant of the Great Ape with enough access to a full moon. This form is much more powerful than a regular Great Ape and is comparable to a Great Ape going Super Saiyan. This form seems more difficult to control since Vegeta who can control his Great Ape form, failed to control and went feral when he change into this one.
Users - Goku and Vegeta
Super Saiyan - A form only achievable when a Saiyan of significant power experiences a fit of extreme rage and has a direct need to take this transformation. Super Saiyans have little physical change except for the blue eyes, blond hair, and yellow aura but the strength difference is enormous. Super Saiyans after transformed go through a personality change as well. Goku who normally enjoys fights with strong opponents even if they are evil becomes and avenging warrior hell bent on his enemies defeat. Vegeta when he first transformed became even more arrogant and prideful than before. With a desire to test his strength against strong adversaries.
Users - Goku, Vegeta, Gohan, Future Trunks, Broly, Trunks, Goten, Goku Jr, Vegeta Jr, Bardock, Caulifla, Kale, Cabba, Gogeta, Vegito, Kefla, Black Goku
Super Saiyan 2 - A Super Saiyan that has gone beyond, Super Saiyan 2's are incredibly powerful and have pushed the limits of their potential. Gohan was the first person to achieve this form. In this state the hair becomes spikier and the yellow aura gains an electrical effect. Super Saiyan 2 is believed to have double the power of the previous transformation.
Users - Gohan, Goku, Vegeta, Future Trunks, Caulifla, Cabba, Kefla
Super Saiyan 3 - This form is achievable only through extreme training and the final form in the manga, Super Saiyan 3 has some noticeable differences from the previous forms. While the electric aura and spike blonde hair remain, the hairs length increases to be about waist to knee length. The form increases the power output of the Saiyan to unbelievably high levels however the side effects to this form is the stamina drain which is considerably high and the form has later been surpassed by Super Saiyan God and even variations of the SSJ2 transformation which indicates that the Super Saiyan 3 form is no more.
Users - Goku, Gotenks, Vegeta(video game only, Broly(video game only), Future Trunks(video game only)
Super Saiyan 4 - An anime only transformation. The form is radically different from any previous transformation. Super Saiyan 4's gain Red colored fur over most of their body and their hair length become longer, but is more akin to their standard hair and they keep their natural dark color. The Saiyan in question keeps their electric yellow aura. This form seems to be a mix of the Great Ape transformation and the Super Saiyan aura. This is the pinnacle of Saiyan evolution. The form greatly surpasses SSJ3 in all aspects and it uses significantly less stamina than that of SSJ3.
Users - Goku and Vegeta and Gogeta
Super Saiyan God - Is a Saiyan Transformation that requires a certain ritual involving 6 Saiyans. 5 Saiyans hold hands and the Saiyan becoming a Super Saiyan God will be empowered amd therefore, successfully attain the form. The form completely separates from the standard Super Saiyan chronology(Super Saiyan, 2 and 3). The transformation gives the user an incredible amount of power that makes the Super Saiyan 3 nigh useless in comparison however the form does use an excessive amount of stamina and energy. In appearance, it turns the user's hair and eyes bright red with the eyes becoming more detailed and the hair identical to Goku's normal base form except for the color which means that the form is the base form of the Super Saiyan God chronology. The aura is also fiery red.
Users - Goku and Vegeta
Super Saiyan Blue - Is the Super Saiyan version of Super Saiyan that turns the user's hair and eyes blue in the same fashion as a normal Super Saiyan as well as the aura. The form gives the user an even greater amount of power and the stamina drain is lesser than Super Saiyan God.
Users - Goku, Vegeta and Vegito
List of Saiyans
- Bulla (1/2 Saiyan 1/2 Human)
- Future Gohan (1/2 Saiyan 1/2 Human)
- Future Trunks (1/2 Saiyan 1/2 Human)
- Gohan (1/2 Saiyan 1/2 Human)
- Goku Jr. (1/16 Saiyan 15/16 Human)
- Goten (1/2 Saiyan 1/2 Human)
- Pan (1/4 Saiyan 3/4 Human)
- Trunks (1/2 Saiyan 1/2 Human)
- Vegeta Jr. (1/16 Saiyan 15/16 Human)
- Gogeta (Fusion of Goku and Vegeta through the Fusion Dance)
- Gotenks (Fusion of Goten and Trunks through the Fusion Dance)
- Vegito (Fusion of Goku and Vegeta through the Potara Earrings)
- Kefla (Fusion of Caulifla and Kale through the Potara Earrings)
Non Saiyan Beings with Saiyan blood
- Bio-Broly (Artificial Clone with Broly's DNA)
- Cell (Genetic Android with the blood of Goku, Vegeta, Raditz, Nappa)
- Super Buu (Absorbed at one point Goten, Trunks, and Gohan)