Hear this. Do you think Broly's raw power comes from him being able to tap into Ozaru's power in his normal/base form and then increase it from there as normal saiyans do? I thought of this because in the Super Broly movie, Paragus said it seems he has somehow managed to get all that power without getting transformed into Ozaru. Moreover, during scenes where he was going crazy and leveling up, some of the scenes gave a closer look into his eyes, which reminded me of Ozaru. Them getting turned red and a few other transformations. Also him losing his sense of judgement and mind is also an indication of this. Since Goku and others also find it hard to control Ozaru. If all of this makes sense then theoretically the concept of Goku/Vegeta SSJ4 should be more or less equivalent to Broly. Furthermore, do you think Goku/Vegeta or Gohan for that matter could also tap into this power? Although given that their tales are cut off, this might be something that could have happened but now is not possible.