>>44668285i don't think it's exclusive to either version of d/p/pt so you should be able to get it in all 3. also, the dns exploit works for all gen 4 and 5 games pretty sure.
fun fact: route 25 in hg/ss has water puddles along the shortcut back to cerulean. if you run across these puddles the rhythm will match the percussion in the route music.
