dont know but i do know that you can catch ditto in both
You can't catch a Bellsprot in Pokemon Emerald. You trade it from Pokemon Leafgreen!
You cannot catch Entie in Pokemon Emerald. You can catch Entie in FireRed, LeafGreen, HeartGold, and SoulSilver. You can trade Entie to Emerald from FireRed and LeafGreen.
You cannot catch aipom in leafgreen however you can in emerald or Pokemon colosseum.
you can't catch aipom in leafgreen but you can get one from Pokemon colosseum or Pokemon emerald.
You have to trade from LeafGreen/FireRed.
no only in leafgreen or firered
You cannot catch houndour in Pokemon leafgreen either get one from Pokemon emerald or Pokemon colosseum.
You can't catch it in Emerald, sorry. You have to trade one from Pokemon Leafgreen.
You cant on Emerald, but i believe you can catch and transfer them from FireRed and LeafGreen.
you cannot catch a smoochum you have to trade it from firered and leafgreen
You can't catch a ditto in Pokemon Sapphire, but you can trade it from Pokemon Emerald/FireRed/LeafGreen.
You'll have to trade from Pokemon FireRed or LeafGreen.