That still doesn't answer why Cinnibar exists. (As a city)
...Wait, what? O_o Cinnabar exists as a city because it was founded. It's the location of the eighth Kanto Gym, the Pokémon Lab in which fossils are resurrected, and the Pokémon Mansion where the Mewtwo experiments supposedly took place. On a non-meta level, some people saw an island and thought it would be fun to live there.
It is believed take place after Johto games,
But my edit/last line of my post links you to a page that says fans
don't believe RSE takes place after Gen II.
Are you asking when FrLg took place? Because it's explicitly stated as being a remake of RBY. All of the events in RBY are essentially the same as FrLg, with a few others (like the Sevii Islands side quests) added in. So, for example, there are Snorlax blocking routes, Team Rocket took over various places and then disbanded when Giovanni is defeated in his home gym, et cetera.
Which would have to place the whole 3rd generation of games right between the events of G/S/C and R/B/Y. Meaning that MISSINGNO DID leave the island BEFORE the Pokemon Lab did.
I'm not sure I understand what you're saying here.
Missingno isn't in Gen II because the programmers took particular caution
not to let it reappear. However, because they couldn't entirely figure out how to prevent people from encountering the problems they had in Gen I, they simply removed any possibility that those events would happen again. (This is also why the Safari Zone is closed down: to avoid letting people go to Glitch City.)
They have to be, because a normal Pokemon cannot exceed level 100.
The Pokémon you encounter on Cinnabar's coast are glitches, yes, but they're not Missingno. They don't behave the same way as Missingno, and the games treat them exactly the same as normal Pokémon. They can be stored and indexed in the Pokédex as the exact Pokémon they are. (For example, a level 100+ Pidgeot you find along the coast will be registered exactly as a Pidgeot and not as anything else.) Likewise, once you bump their level back down to 100, they're treated exactly the same as any ordinary level 100 Pokémon.
I understand how the glitch works.
I don't mean to offend you, but if you do, then you'd know that the game is calling on hex that codes for Pokémon when you encounter a level 100+ Pokémon, not the extra hex values that code for Missingno. It's not a Missingno unless the game acknowledges it to be Missingno.
in "MISSINGNO=MEWTHREE" world,
...Which is to say, your own fan-created world or the canon one?
Because it's the same DNA at work, the pokedex sees something that looks like Ponyta, attacks like ponyta and has the DNA of ponyta, and labels it ponyta. Or the trainer looks and goes "that's a ponyta." Remember, the pokedex is ultimately what identifies pokemon (by the anime standards. By the game, either PokeDex or the trainer does the identification).
Not sure what this has to do with much of anything, but in that case, yeah, the 'dexes register the level 100+ Pokémon as whatever Pokémon they appear as. For example, a level 100+ Pidgeot will be registered in the 'dex as a Pidgeot.
OK, well maybe they found that having the movepool was more important than being psychic.
Erm, actually, I was saying the reverse -- that Mewtwo was created to be a more powerful psychic, but in doing so, they altered Mew DNA to the point where that restricted Mewtwo's powers and general traits.
Features from an original can come back, so why can traits from Mew be replicated in mewthree after their importance is realized?
At which point, the programmers would probably just create a Mewthree, not relabel Missingno to be it.
Mewtwo would be ultimately weaker than Mew because mew has the ability to score super effective hits on Mewtwo.
And vice-versa, actually. Mewtwo can learn Shadow Ball and has been shown in the movies to be able to use it to hold its own against Mew. While I said Mewtwo doesn't have the ability of every Pokémon, I never said that made it
weaker. In actuality, while Mewtwo's defenses are inferior to Mew's, Mewtwo has higher stats all-around, which means it can utilize a more limited movepool and ability set to focus on assaults that can actually take down a Mew. (In other words, this is how the games show that Mewtwo was created to be stronger than Mew: by giving it higher stats and stronger attacks, although it just doesn't have the same movepool.)
To create the ultimate fighting machine, a creature would have to be able to use any technique against any monster,
Not necessarily. If you've got all the moves in the world but have crappy stats to handle them, then you really can't do much with your arsenal. It's like having every gun ever created but no muscles in your arms to hold them, let alone shoot.
You don't go through the game using only ONE pokemon, do you?
Actually, some people do, and it's perfectly possible. In my copy of Ruby, I did just that with a Swampert and breezed past the E4 and everything.