Some unown can be found in the tanoby chambers although leafgreen can get some firered doesn't so trade the leafgreen unowns to firered to get them all. Psst if you look very hard in the viapois and monean chamber you can find two secret unown: A exclamation point and question mark.
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
actually theres about 7 difrent caves! there in the tanoby ruins bu tfir ts uhave to osolve this puzzle there located on island 7
it's some cave in the sevii islands after you beat the e4.
Pokemon's 1-384
Catch all the Pokemon!
u can get all of them...
Yes
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