During this stage a Super Saiyan will have increased body mass and all hair on your body will become golden.Goku first achieved this stage against Frieza when Frieza killed Krillin.The second person we seen to achieve this was Future Trunks after Android #17 and #18 killed Gohan.
Stage 2
The hair is the same as Stage 1 but there is more muscle and there is a occasional lighting zap around the SS2 body.The first person to achieve this was Gohan after he seen the Cell juniors beat up on his friends.Then it was Goku next to reach this stage while he was training in the Outer World.
Stage 3
This Stage has even greater body mass than the previous 2 Stages it is also accompanied by hair that grows all the way down to there waist.The only problem with this Stage is it takes up a extreme amount of power.Goku was first to achieve this Stage while he was fighting Janemba.The second person to achieve this Level was Gotenks during the Boo Saga
Stage 4
This Stage is very much different from the other Stages first it comes with a tail,second they have a furry chest and third there hair is not golden.There are increased muscles in this Stage.The only people to come to this Stage were Goku when he fought Bebi Vegeta.Vegeta was second to this stage after Bulma build Vegeta a brute array.
Oozaru
This Stage comes natural to any Saiyan with a tail.When any Saiyan looks at a Full moon the becaome a huge monkey.They also become 10 times stronger tahn there normal form.
Golden Oozaru
This Stage is almost the same as the Oozaru exept for a few things like the fact that the hair is golden (hence the name) and you become instead of 10 times stronger,15 times stronger than you normal form.The only people to become this are Bebi Vegeta and Goku,they did this against there fight against each other.
