apparently they made the game first and then the tv seris Ash is based on the magna character Red
Satoshi is based on the GAME character Red. IIRC, the anime came BEFORE the
PokeSpecial manga (which I assume you're talking about, if you're talking about Red in the
Pocket Monsters manga...then he
surely wasn't based on him, but Satoshi was planned on getting a Pippi like he did before the anime was produced). Trivia: One of the main character's default names in the R/B/G/Y games is
Satoshi. Though in the G/S/C games his in-game canon name was finally revealed to be
Red (also one of his early default names). Many mistake
Satoshi as being based on the creator of Pokemon
Satoshi Tajiri, but it is merely a reference to the creator of Pokemon. He was always based on
Red. As is
Shigeru. Though definately not the
same person, they seem to be the same "entity" in different universes.
Ash is/is based off Red except personality & a few other factors(Red seems more serious and catches much more pokemon.)
...What is this "personality" in which you speak of?
The games came first, then the
Pocket Monsters manga, then the anime, and then the
PokeSpecial manga. Since the games came first, anything that happens in them is the
real canon for all of Pokemon. Remember that. XD
I can recall correctly that at first the anime didn't stray too much from the games in the first 80 episodes (sans the shafting of the Rocket Gang sideplot and a few other sideplots, Satoshi losing in the Pokemon League, and no confrontation of the Elite Four). Beginning at episode 81 was when the anime actually became
much more of an alternate continuity.