Broly kills him in all rounds.
Base Broly should be Multi Solar System Buster consedering he is a Galaxy Buster in RSSJ. Enough to wipe out 1st form Janemba.
Round 2, Broly destroys him and the Galaxy.
LSSJ3 Broly still kills him since he is above LSSJ. If we use all game feats of Broly (no game mechanics) he is a Universal Buster in LSSJ since he destroyed the Universe in his BK3 ending.
Also in am hour Broly will just stay in LSSJ to increase his power non stop.
Been done before, but the last battle was kinda stupid.
@taichokage: Yet anemba was able to do nothin to him and when he was, Veku seperated.
2nd, it takes 30 minutes for fusion to be attempted again yet Goku and vegeta do it again ignoring that fact.
Why? Idk..maybe it was plot device? same one that was used to defeat Broly 2 times and also defeat Bio Broly.
Also Janemba's hax are horrible, it did not even help him defeat Gogeta or even SSJ3 Goku.
@taichokage: Yeah but you said he can make copies, why not of Gogeta?
Also he was hurt by physical damage.
Broly is faster than Goku SSJ3. Traveling all over the Galaxy to destroy planets or stars when he was a kid should be clear that he is FTL. Goku is FTL with Shukan Ido.
@taichokage: Broly lets him self get hit. You know better than anyone he lets his foes hit him to show his superiority.
Also you just answered your own qustion.
After the explosion of the Galaxy wouldn't Broly need to escape? Or else he would die in an exploding Galaxy correct? Unless he tanked it but I doubt that. How fast would Broly had to go to escape from a exploding Galaxy? Many times FTL.
There you go, he also showed speed feat plus destructive feat in one pannel.
Broly is faster.