you just fight them
you have to get pass or rainbow pass
I think you have to get it in an Nintendo event
you have to get a rainbow pass
You need the HM5 Flash.
You get the national dex and the rainbow pass after getting the ruby!
rainbow pass
you have to have the rainbow pass. you take the ferry
To get Moltres in Leafgreen, get a tri-pass or rainbow-pass and go to one island. Then go to Mount Ember, and get to the end. There you will find Moltres.
Pokemon event only
I think you can only pass Pokemon from Emerald to Diamond/Pearl
You don't give them water instead you have to get them Tea. In Celadon City there's a large building by the Celadon Department Store and if you go inside and talk to the old woman on the 1st floor she will give you Tea. Give the guards the Tea and they will let you pass.
it does but you need the aroura pass and you could only get that at a Pokemon convention and that was in 2004