First off, you have to understand something about the manga. Satoshi Tajiri once stated that the Pocket Monsters Special series is closest to what he imagined the Pokémon world to be: "This is the comic that most resembles the world I was trying to convey." (from Wikipedia).
The two can be compared, because the PokeSpecial manga is closest to what the creator of the series envisioned the Pokémon universe to be like.
I mean, in the games, FRLG are remakes of the games, RBGY, while in the manga, they are completely different stories in the same region. The remade games have the same story, with just differences in locations and version compatibility. So, technically, D/P/Pt DID occur at the same time as GSC, which is the SAME as HGSS. In any case, Emerald doesn't even come in over here as a separate timeline to RS, since only the story is edited, that too with minor changes. Thus, the Manga isn't really proof of the timeline, since in the manga, Emerald saga is after the FRLG saga.
FRLG is more than just a remake. Included in those games were the Sevii islands, which is in fact the location of an arc in PokeSpecial which takes place after Ruby/Sapphire and before Emerald, and is in fact linked to both.
Emerald was released after FRLG, you know that right?
Also, the only components of the games that are similar to the Manga are the names of the Pokedex Holders, and the fact that legendaries can be caught.
What? There's heaps more similarities. Have you even played the games and/or read the manga (all of it)? Even the outfits are the same.
what that dude was trying to convey, was that pokemon games within a particular generation are in the same timeline.
That's what I said, thus each generation is a separate timeline, regardless of remakes.
Also, later generation games require special methods to interact with the previous generations (e.g. Time Capsule, Pal Park).
Those game play mechanics have nothing to do with anything, at least for the most part. You already are told that RBGY happened three years before GSC in the game, so the Time Capsule doesn't exist to prove that, it simply exists to allow you to trade with older games. Pal Park too is just another way to get your Pokemon.
Basically, Generations I and III take place at the same time, and Gens II and IV take place at the same time. Which is why the formers' main game was remade in the latter.
And you CANNOT compare the manga and the games, storyline-wise. They are completely seperate media, and thus completely seperate canon. Which is why Red in the end of GSC/HGSS is NOT the same Red from the manga.
No, they don't. While the remakes are similar to their predecessors, they are different, and there is evidence that can be interpreted to show that they belong to different timelines.
I can do whatever I want, you don't own me :P. They are not completely separate, as the two forms of media loosely share the same story. Yes, they may not be the same Red, but Red did go to Mt Silver in the manga (and Gold did follow him).
Perhaps I'm being to strict on something so ambiguous, so I suppose you can consider the previous games as smaller parts of the remakes. But by themselves, RBGY and GSC can't really be considered as part of the same timeline as their remakes in the third and fourth generations, respectively.
Agreed, this is not the manga forum, I'm posting info recieved from the games. Also, I'm considering Kanto based games as gen 1, and Johto based ones as gen 2 here.
But Kanto is in gen 1 and 3, and Johto in 2 and 4. If you mix everything up, everything will just get confusing. See below.
Anyways, I am having second thoughts about Gens 1 and 3 occurring at the same time. There's this nice little braille message in FRLG's Dotted Hole. Here's what it says...
Let's see... The two glittering stones are the Ruby and Sapphire, obviously. "The past" could be referring to FRLG, or RSE (Maybe even Colosseum and XD.). It could even refer to them both being "the past", the past being before gen 2.
"Two friends sharing power" is simple. It's referring to trading. The part about opening a window to a new world that glows, and the next world that awaits you may be referring to gen 2 or 4, but I'm not sure.
The events in Hoenn occurred slightly before the Sevii island events in FRLG. Giovanni picked up the glittering stones (which are actually parts of the shattered Red and Blue orbs of RS, and used them for his own purposes.
I don't see why you all are so insistent on separating the manga from the games. The PokeSpecial manga is the best thing about Pokemon, and furthermore, it goes into greater detail than the games, allowing us to get a better understanding of the game events.
I wonder how much of this made sense.