Saiyans:They have spiky hair and have the ability to get stronger from every battle by 28%; they also have the ability to turn Super Saiyan.  To turn SSJ1 you must have a reason, like seeing a friend die in battle, you also need a power level of 100,000 at the minimum.  When you do all your stats will double (unless you have not mastered the ability of [Super Saiyan] your power will go up by 80%).  To turn SSJ2 you must have a even more horrible reason then the first one, like seeing all of your friends die in battle, you must also have a power level of 1,000,000 at the minimum, when you do all your stats triple (unless you have not mastered the ability of [Super Saiyan] your power will go up by 175%).  To turn SSJ3 you must have a even worse reason then before like seeing all your friends and innocent people die in battle, you must also have a power level of 5,000,000 when you do all your stats times by 5, but your agility goes down by 20%(unless you have not mastered the ability of [Super Saiyan] your power will go up by 350%).   To turn SSJ4 you must go on a quest on another planet and look at the earth well its full, you will then turn into the golden were monkey and be 10 times your normal strength, not to mention that you can’t have control over yourself until someone beats you.  When you do you will be able to be a SSJ4, all your stats times by 6.