I honestly believe that Bio-Broly would not be hated anywhere near as much if it weren't for the damn name. It's a fairly decent short DBZ movie— certainly no Fusion Reborn and not even on par with Broly: The Legendary Super Saiyan, but I've always appreciated that it gave a bit more love to unusual suspects. Movie 10, for example, copped out of giving the limelight to Gohan and Goten by bullshitting Goku back at the very last minute. Movie 11, on the other hand, actually has Goten, Trunks, and even Krillin deliver the killing blow with Goku nowhere in sight. It doesn't even half-cop out by having Gohan show up (considering he did end two movie villains himself).
I mean for goodness sakes— this movie actually bothered to give character development to Mr. Satan, of all people! Not forgetting some neat bits with Krillin and 18 going on and we also get Goten and Trunks as... just Goten and Trunks, not even Gotenks! The boys themselves have to step up to the plate to save the day.
I mean, it's almost everything we've been asking for:
- Goku is nowhere to be seen until the last, and I mean the actual last minute of the movie just to justify putting him on the box
- The supporting characters steal the spotlight
- Someone other than Goku defeats the villain
- Mr. Satan gets some background development
- Goten and Trunks are useful without being fused
- Human characters help defeat a big bad (again, Krillin joins in with the parting Kamehameha IIRC)
- Big bad couldn't be defeated just through raw strength and endless ki raising
So why is it the black sheep of the movie series?
That's it. That's literally it. The usual bullshit arguments about quality aside (i.e. "Can't blow up the omniverse with a casual ki blast? You suck!"), the only reason why Bio Broly has failed to garner any real love is entirely because it pissed on Broly's head. Broly is a popular character, that's not changing. This was even truer back in the day when most modern fans were still young and untainted by the hideous, unfaithful, totally foreign, and irrelevant original Japanese version of the series, when this was Biblical truth for many people and Broly decimating the Zetto Senshi was proof enough that he was the god-emperor of the entire mythos.
Broly's original appearance made him seem utterly unstoppable, as if the Hulk smashed into the Z-verse and went Super Saiyan. Due to the animation team rushing things and not being able to more clearly communicate that Broly had a weak spot, it looked like movie 8 completely bullshitted the ending because all relevant Z fighters threw absolutely everything they had at Broly and he kept bending them over and opening a multiverse-wide can of whoopass. What's more, he actually seemed to have a character in movie 8 and it didn't seem like he hated Goku just because he cried a lot as a baby. Again, this could have been communicated better, but Broly was so stupidly unstable that his godly ki was reacting to Goku's, which further made it seem like there was a titanic battle exploding.
Goku had the power of 4 Super Saiyans and a Super Namekian in him and he could still only barely eke out a win because of a lucky shot.
ADD moment: a lot of things about movie 8 are questionable. In-Universe, Gohan would have been the one who gave Goku enough energy to kill Broly because it was clearly stated in the Cell Saga that Gohan was stronger than Goku, let alone Vegeta. Yet in the movie, Toei portrayed Gohan as the weakest of the fighters. He didn't even job because that would assume that he put up a fight. What's more, power scaling changes by a horrifying amount depending on whether or not Toei's writers knew that Goku and Gohan were as powerful as they were. In-Universe, Goku and Gohan were MSSJs beyond even USSJ Trunks. In the movie, however, it seems possible that they're "just" super saiyans. This means a world of difference because if they were MSSJs, that would make LSSJ Broly at least Super Perfect Cell-tier if not higher. However, if they weren't MSSJs (which is possible due to them not being in the form), LSSJ Broly could actually be roughly around Perfect Cell post-zenkai. If Toei had a few more months to work on this movie, it would have been the best of the Z films by far instead of the most mystifying.
Anywho, Broly had a very strong start. In a series that had become "strength = quality", Broly was A1 because the show's A-listers were being ragdolled. Never mind that they were being ragdolled in every movie.
Movie 10 downgraded this a bit, but only in retrospect. This is because rather than our almighty team of Goku, Vegeta, Future Trunks, Piccolo, and Gohan, we only had Gohan, Goten, Trunks, "and" PiccoKrillin. Oh, and Videl. Even at this point in the series, Goten and Trunks were seen as jokes and they didn't have fusion yet, so many fans were disappointed that they carried half the film. Thus, to all the power-obsessed fans, Broly's only real challenge was Gohan. They knew Broly wasn't going to win— never go into one of these anime movies expecting the hero to lose!— so they wanted to gauge Broly's power by the strongest hero to beat him.
Gohan seemed fine! He went Super Saiyan 2, after all, and even then he was being squashed like the disappointing scholarly bug he was. Of course, he managed to put up a better fight than everyone in movie 8 solely because he managed to deal a single blow to Broly that staggered him. This would make sense for SSJ2 Gohan, especially if he's a teenager now, but that only increases the threat Broly poses because it shows that even Gohan going all out barely fazes—
Oh? What's that? Gohan sucks now?
Well that's disappointing. So not only is SSJ2 Teen Gohan about as strong as MSSJ Cell Games-Gohan, he's also a sloppier fighter altogether. We didn't get Vegeta either. Hell, not even Piccolo, because of an admittedly funny gag.
And Kid Trunks pissed on Broly's head.
And Kid Trunks was able to stop Broly's planet-destroying blast just by shooting a little ki blast in front of it.
And Goku saved the day somehow.
And Kid Trunks pissed on Broly's head as Broly moaned sensually as it trickled down his face and lips.
So to those who hyped up Broly as the strongest thing in Dragon Ball lore, this was a pretty disappointing second coming.
But there was one last hope, one chance for Broly to be redeemed as the most dangerous-ass Saiyan to ever live.