All 150 Pokemon i HS/SS?

HiI was just wondering if you can get all the Pokemon from Fire Red and Leaf Green in Heart Gold and Soul Silver without linking to the GBA games?I saw a trailer when someone said that they put Pokemon from Fire Red, Leaf Green, Ruby and Sapphire in HS SSBut did they put all of them in or just some random?First Generation is my favorite that's why I'm asking

I think there are a few Kanto Pokemon missing from each version. Don't quote me on it, though.