Question

I heard you could get hoenn starters in heart gold but can you get them on ds and if so how?

Answer 1

In Hg Ss you can from steven the horn champion in kanto after beating everything elseMore details here

Answer 2

In hg/ss you can choose one from Steven at Silph co after you beat the game. If you want one on diamond, pearl or platinum, I suggest you migrate them or do a global trade.

Answer 3

of couse you can talk to steaven at one point he will ask you "if you would pick a stone what colour would it be?" he shows you three coulours red(torchic) green(treeko) and blue(mudkip)

cool right
PS:its in HG and SS gen IV(4)