Yes, They did go ascend super sayian but they didn't go ultra super sayian because ultra super sayian slow them down and they don't want any thing slow them down against Broly, The ultra super sayian surpass legendary super sayian the ultra super sayian is stronger but they are slow if they goes ultra super sayian they will make a challenge, if Gohan goes super sayian 2 he will kill Broly and make sure he don't survive.
No Super kamehameha is better because he does it when he is in full power super saiyan(the stage before making ssj2). I don't think kaioken x20 kamehameha will ever compete against a super kamehameha.
yes Broly is a super sayian after all he is a sayian.
goku, goten never goes super sayian 4
Goku can go Super Sayian Stage 1, Then Ascended Super Sayian or Above Super Sayian Stage 2 but below Super Sayian 2 Stage 3, Stage 4 is Super Sayian 3, Stage 5 is Super Sayian 4!
Yes Goku is stronger than Pikkon as you remember they were only true equals during the end of the cell games saga . Were Pikkon was only able to go toe to toe with Goku in his super sayian form . Both were equal but overall goku seemed to be the greater fighter even after their fight . Now at the end of the Kid Buu saga goku managed to reveal that he surpassed gohan at super sayian 2 when he revealed his super sayian 2 tranformation , and should have definitly proved it when he turned into super sayian 3 . So if Goku could beat Pikkon in his normal Super sayian transformation what gives you a chance he can beat him in super sayian 3 . I would just overkilled the answer and said that Goku SS4 in GT . But sadly its not official it is all OVA . But Goku by the end of the kid buu saga he reaches super sayian 3 which clearly is multiple times stronger than his super sayian transformation .
I don't think he does because in one episode he could I remember him going super sayian and super sayian 2 but that's it.
yes there will be a super sayian 4 gogeta.
the highest level of super sayian is 4
Vegeta turns super sayian in episode 59 of Dragonball gt
yes if he can turn super sayian and super sayian 3 cause when goku turn great ape he also turn into a super sayian at the same time but if goku jr wants to become super sayian 4 then he has to remember something to calm him down when he is in great ape form
He doesnt have an item when he turned super sayian it was his anger so he turns super sayian by combinding his energy.