Saiyan Levels
Oozaru- A saiyan MUST have a tail to reach this form. When a saiyan looks at a full moon they transform into a huge ape like creature. The saiyans power is increased by a lot but the oozaru stage can be ended by cutting off the long tail or by destroying the full moon.
Super Saiyan- For a saiyan to reach this stage he must be a full blooded saiyan or at leaset half a saiyan, nothing less. For a saiyan to go super saiyan he must experience a lot of anger. When the transformation takes place the saiyans power, speed and agility rise greatly. The saiyans hair turns a gold colour and the hair sticks up, their eyes turn green, their muscles grow bigger and there is a gold aura surrounding them.
Ultra Super Saiyan- This stage is between ss and ss2 but you do not have to reach it to become ss2. When a saiyan turns uss their hair is more spiked and is more gold, the saiyans muscles increase by a great amount aswell as their power but they lack speed becasue of that. So those who reach this level choose not to use it that much.
Super Saiyan 2- ss2 is more powerful than ss and uss and has more speed than the others. The saiyans hair is still gold and it grows longer than the otheres but this time there are bolts of electricity around the body aswell as the golden aura. Gohan is the first saiyan to go ss2 when he is only a teenager in the cell saga.
Super Saiyan 3- ss3 is a very hard level of ss to reach and requires a lot of training and battling. When a saiyan reaches this level their power increases greatly and so does their speed and agility. The saiyans hair is still gold and grows down to their knees and the saiyans eybrows disapear.
Golden Oozaru- This is much much stronger than normal oozaru. This level is achieved when a saiyan looks down on Earth from the planet Plant. The golden oozaru has gold fur all around it's body.
Super Saiyan 4- This is my fave super saiyan level, although it is odd. To reach this level a saiyan MUST reach golden oozaru then can become ss4 by experiencing extreme anger. The saiyans hair turns black(accept for gogeta's) and comes down to their shoulders, they have red fur covering their arms and legs but but not the chest and all attributes are increased by a great amount.(i dunno if this is true but i read that Vegeta goes ss4 by one of Bulmas inventions i think).