I think I must be missing a point you're trying to make, Jerky.
First, you'll note that the game script only says that the Crono held the pendant for Marle. When did this occur? Well, we know it happened when they first met and after the telepod incident. Those game quotes would still be accurate statements, then, even if Crono gave it back after Marle returned from the middle ages and he didn't have it when he died.
This doesn't preclude the possibility that Crono still had it, but it doesn't necessitate it either. In short, those quotes you provide prove nothing that was debated; rather, they only show that at one time Crono indeed had Marle's pendant.
If we look at the matter from a writer's perspective, it is actually rather important at that point for the party to identify which pendant it was. Marle's pendant was the exact same as Schala's, at that point, so by identifying the pendant as the one Crono had makes it clear that the pendant is Marle's and not Schala's. If the characters had just said "the Pendant" or "Marle's pendant," it wouldn't have actually been clear whose pendant it really was.
It would seem that the problem with Crono having the pendant when he died was, well, he vaporized. Everything else he had was lost (though the pendant is special enough it might have avoided this).
Even assuming he did have the pendant, consider the following chain of events: it survives his vaporization, Marle and Menagerie "find" it (or it finds them), they travel in time, get the Time Egg, climb Death Peak, they travel back to Crono's death with time frozen, they save Crono, travel back to the future and... they now have two pendants. Since time was frozen, the timeline had no chance to be replaced, the extra pendant had no chance to be shunted to the DBT (as per Time Bastard), and the extra pendant traveled through time so it now has Time Traveler Immunity (specifically, the "new timeline" pendant gains this, while the "old timeline" pendant already had it and would have gained it again in the same instance of time travel anywho) and can't be shunted to the DBT (since TTI is protecting its appearance). Matter has essentially been created, Crono and Co apparently ignore the extra pendant, the universe implodes, and fin.
But perhaps I am misunderstanding Time Bastard or TTI.
However, you do bring up a very interesting bit of information regarding the pendant. It had to activate the Time Egg, it seems… sort of like how Masa and Mune had to activate the Time Egg in CC to save Kid. I think that deserves an update in the Pendant and the Telepod article.
Since when did Mother Brain say that she was "working to overcome" Lavos (or the apocalypse; you weren't clear on which)?
Apocalypse = end of the Planet
Mother Brain = building a new order of steel on the Planet
Indeed for that she(it?) had to get rid of humans, which was Geno(ci)Dome's purpose.
I'm not sure if I am following you (or if you are even following yourself). It looks like you are saying the Mother brain is working to overcome the apocalypse because she wants to save the planet so an
Age of Steel can begin. For this to happen, she needs to wipe out humans (hence, Geno Dome). Is that what you are trying to say?
If so... wha?
The apocalypse is why humans are dying out. Mother Brain wants humans dead, therefore she'd see the apocalypse as a good thing, and therefore wouldn't be working to overcome it at all (because, now,
the humans are dead). Remember, the apocalypse doesn't mean the end of the planet. It means the end of human civilization and it marks the start of the end for the Entity, but while the Entity is the Planet, the planet wont go all
Alderaan on us once the Entity is dead. The planet will still exist, robots can still thrive there, but life (at least, natural life) couldn't.
It looks like you are making your point by contradicting yourself. Thus, I am confused.
Mother Brain never wanted to preserve the Lavos Spawns, I don't know why you take that as canon...
You might notice I specifically said that MB wanted to preserve the Lavos Spawn in the
North American Translation, which comes from this:
Lavos's children will one day have to
leave to seek new planets, and prey.
This world COULD sustain them...if
humans were not around...
Mostly the interpretation that Mother Brain wants to protect the Lavos spawn is from juxtapositioning. Lavos' children will leave, but they don't have to if humans weren't around, she wants to kill all humans (possibly by using poisonous gasses to poison their asses).
However, I also followed that up with a comment regarding the retranslation (as the NA indication that she wants to protect Lavos' spawn appears to be a Wooleyism). You already quoted from the retranslation, so I wont do so myself. But you might notice that she mentions Lavos' children only in passing and even at that she's guessing at what they'll do. Barely a footnote in her entire speech.
However, to note, "return" is a curious word to use there. Lavos' children had never been in space before, or so it is largely assumed (since it spawned on earth), so how can they "return" to someplace they've never been to before?
Denotes that
a) She wanted Lavos's spawns to leave the planet, like they were a threat.
b) She apparently wasn't worried about Lavos, maybe because Lavos had already "finished the work", but the spawns were young and hungry. There IS a reason why she mentioned the spawns and not Lavos itself, but we don't know it. I don't think it's just random rambling from the script writer.
c) It wanted to create a new civilization for the world to continue, only without humans.
Nope, that denotes that
a) She thought Lavos's spawn would leave the planet (she didn't know, she was guessing, estimating, predicting).
b) She doesn't address Lavos and barely addresses his spawn, and only then in stating that they'll probably be leaving. Thus the implication is that Lavos itself wont "LIKELY return to space soon. Seeking new PREY, new planets..." As Lavos isn't included in the action of the sentence, he can't be included in the subject of the sentence.
As for c), yup, she wanted the humans dead and a utopia of metal.
However, it is curious that "the planet will recover" and "if only humans weren't here" is separated by a period, not a comma. Therefore, human continued existence is not actually preventing the planet from recovering (as is sometimes interpreted). Rather, we must find a different "then" to that If/Then statement. Regardless, the sentence construction indicates that the planet will recover regardless. Mother Brain apparently isn't terribly concerned with that either.