try to stop the evil Majin Buu from Destroying earth and everyone on it (witch by the way he successfuly desroyed eath and gotanks though he used a cheap shot to do it) anyway a saiyan once they get strong enough transform into a super saiyan who's hair go's spikey and gold and they become super powerful then when they get evern stronger they transform into a super saiyan 2 becoming even stronger