Trading.

[Wild Cherry]

I just wanted to know if you could trade back to R/S/E.

Do you have to delete the new moves though?

 

[MYSTERIOUS MISSINGNO]

As far as I know, no you can't

 

[Munchlax 357]

nope. u cant trade back no matter wut u do, i think

 

[Comkeen1]

You can't. It's a one way transfer. You go to a place called Pal Park after you get to the national pokedex and you send your pokemon from your GBA game and then you catch them again. Note: once you send your pokemon you can't send them back.