Saiya-Jin Forms

Super Saiya-Jin Level 1- In this form a Saiya-Jin's hair becomes a Golden Yellow color, and their eyes turn a bluish-green. Their muscles bulk out more, and their strength literally doubles. However their hair does not have great depth, but more then their original hair style. The hair also is not completely straight up.
Many say that Goku was the first to reach this level. Actually the Legendary Super Saiya-Jin was. The Legendary Super Saiya-Jin is thought to be Brolli. Goku was the second to go this level, and third was Mirai Trunks.(Technically Mirai Trunks turned SSJ before the present Goku.)

Who reaches this level? Brolli, Gohan, Goku, Goten, Trunks, and Vegeta.

Fusions that Reach this level: Gogeta, Gotenks, Vegetto.

Ultra Super Saiya-Jin- At this level the Saiya-Jin's hair stays the same, gaining perhaps a little more depth(not much more then SSJ). Their eyes also remain Bluish-Green, however their muscles bulk up tremendously. Their muscles constantly get bigger as they power up, they are pretty much the size of a bus. When they are powering up, to even greater power, their eyes will turn white, then go back to Bluish-Green. However this form is very slow, much slower then SSJ. If you get hit by one of these bad boys, you will know it.
You never actually see Goku and Vegeta's eyes turn white. This is because they do not fully power up.

Who reaches this level? Brolli, Goku, Trunks, Vegeta.

Fusions that reach this level: None

Super Saiya-Jin Level 2- At this level the Saiya-Jin's hair stands straight up upon their head, thus gaining great depth. Their hair, ofcourse stays Golden Yellow, and their eyes stay Bluish-Green. Their strength increases tremendously, as does their speed. When they fully power, electric bolts of energy, swirl around their aurora. Also their muscles bulk out a little more then SSJ.
Now you are going to look down at the Who reaches this level? and see Trunks. This is because in my opinion, Trunks does reach level 2. I think it was a big mistake, but he did. My case is that in "Free the Future"(the last episode of the Cell Games Saga), Trunks appeared to have all the qualities of a level 2. His hair stood straight up, with great depth, he was extremely fast, and strong. Many say that is just his SSJ hair. Compare his SSJ hair from the Trunks saga, you will see there is a big difference. Many say it is just his short USSJ hair. If you watch the episode when Trunks is waiting to go into the Hyperbolic Time Chamber for a second time, you see his short USSJ hair. Big difference! Thus many people argue there were no electric bolts around Trunks. Remeber Trunks beat the crap out of the Android with ease. He didn't have to use all his power. Trunks at SSJ, or USSJ would never have been that fast or strong either. Maybe not fully powered up in USSJ form would he be a little bit stronger, but not as fast. The Androids could of easily caught him. So you watch that episode, and see what you believe. Our banner, our network banner, and our splash have pics of him as SSJ2..

Who reaches this level? Gohan, Goku, Trunks, Vegeta.

Fusions that reach this level: Gogeta, Vegetto.

Super Saiya-Jin Level 3- At this level a Saiya-Jin's hair grows alot longer, down to their hip. Thus having great depth. It remains the same color, as does their eyes. Their eyebrows vanish, and their strength and speed increase tremendously. Thus their muscles bulk out a little more then SSJ2.

Who reaches this level? Goku

Fusions that reach this level: Gotenks

Super Saiya-Jin Level 4- This is a very wierd level indeed. The Saiya-Jin's hair turns a black color, and grows down to about their shoulders. Their eyes turn black, and red fur covers their entire body.(Except for hands, chest, legs and feet..I'm not sure about the legs and feet, I really haven't seen a picture of it, and I don't think I'd want to see a picture of it, if I could. ) They also grow a furry red tail. However their muscles bulge out about the same, a little more then SSJ3. Thus they became extremely powerful.

Who reaches this level? Goku, Vegeta.

Fusions that reach this level: Gogeta.

Oozaru- Basically all this form is, is a giant monkey. When a Saiya-Jin looks at a full moon, they undergo a transformation, and become about a 100 foot ape. This technique was used by the Saiya-Jins to destroy and conquer other worlds.