SS2 WAS FIRST ACHIVED BY GOHAN IN THE PERFECT CELL SAGA GOHAN TRANSFORMED AFTER CELL CRUSHED ANDROID#16'S HEAD. THEN GOHANS POWER LEVEL WAS 325,000,000 HE COULD EVEN STOP THE DESTRUCTO DISK WITH HIS HANDS.
SS3 WAS ACHIEVED BY GOKU WHEN CONFRONTING FAT BUU SO TRUNKS COULD HAVE ENOUGH TIME TO FIND THE DRAGON RADAR BEFORE MAJIN BUU DESTROYED THE WEASTERN CAPITOL. IN THIS FORM GOKU'S HAIR IS LONGER IT DOESN'T STAND UP LIKE THE OTHER SSJ FORMS HIS POWER LEVEL IS 450,000,000
SS4 IS THOUGHT TO BE THE LAST SSJ FORM. THIS FORM WAS FIRST ACHIEVED BY GOKU IN DBGT ON EPISODE 31 HIS HAIR IS BLACK,HE HAS RED RIMS AROUND HIS EYES, HIS CHEST BURST OUT,HIS TAIL GROWS BACK, AND THIS COSTUME MAGICALLY APPEARS ON HIM. VEGETA REACHES THIS LEVEL BY SKIPPING SSJ3 TO SSJ4 BY A DEVICE BULMA MAKES SO HE CHEATED. GOKU SSJ4 POWER LEVEL IS 1,000,000,000 AND VEGETAS IS 1,000,000,000 IM NOT SURE IF THIS IS THE REAL POWER LEVEL THIS IS JUST A GUESS.
SS5 WAS JUST BEEN CREATED IN JAPAN IN A NEW MOVIE STARTING OFF A NEW DB SERIES CALLED DBY IT'S GOING TO BE GREAT. WELL THE SSJ5 FORM HAS WHITISH/SILVERISH COLOR HAIR AND THE MUSCLE MASS IS ENORMOUS THIS LEVEL IS AHIEVED BY GOKU WHEN HE GROWS OLD IN THE AFTER WORLD BUT HIS GREAT GREAT GREAT GRANDSON WISHES HIM BACK BECAUSE THERE ARE POWERFUL WARLORDS STRONGER THAN ALL THE DBZ WARRIORS ALL FOUGHT TOGETHER GOKU GETS WISHED BACK BUT THEN HE DECIDES HE NEEDS THE WHOLE Z TEAM SO HE WISHES BACK BULMA,TIENSHIHAN,CHAOZU,GOHAN,VIDEL,PAN,KRILYN,
#18, VEGETA,TRUNKS,GOTEN,CHICHI,MASTERROSHI,PICCOLO,
DENDE,YAMCHA,UBUU,KRILYNS DAUGHTER,VEGETAS DAUGHTER,MR.POPO EVEN KAMI SAMA AND HE DIDN'T HAVE TO WISH KING KAI BACK TO LIFE BECAUSE KING KAI IS IMMORTAL. SSJ5 GOKUS POWERLEVEL IS UNKNOWN BUT I HEAR IT'S ENOURMOUS. ALSO OF COURSE VEGETA REACHES THIS LEVEL BECAUSE BULMA TAKE GOKU'S DNA AND PLACES IT IN A DEVICE AND TRANSPORTS THE SSJ5 POWER INTO VEGETAS BODY OH WELL HE CHEATED AGAIN.