after you beat the second gym leader go to the place where you started the game walk into the grass and arceus will apear.
you have to trade them from other Pokemon games
transfer them from Pokemon coliseum or xd
Ho-oh, Lugia, Deoxys.
go upstairs to any Pokemon center
you have to use action replay or to get alot of Pokemon migrate from a firered and use action replay on firered to get all Pokemon except the one from diamond
every where
Pokemon's 1-384
Yes
u can get all of them...
Catch all the Pokemon!
You have to trade and catch as much Pokemon as you can
all over
YES
In Pokemon firered you can't, but in Pokemon leafgreen you can get it then trade it to Pokemon firered.
By trading and catching them i think
you have to trade them from other Pokemon games
There is no Pokemon convention in firered.