Yes, you have to buy it somewhere.
You have to trade from diamond,pearl or platium :) thats what it says in the guide book.
I put a link to a guide all about legendary pokemon in HeartGold in the related links.
There are different times when the March is on and when the Lullaby is on. If you have the National Pokedex, the music from the Hoenn and the Sinnoh are there too. Check a guide book or Serebii.net.
No there is no guide book however the region doesn't exist in heart gold only yellow? red, amnd ruby i think. It is mentioned though as prof. Oaks is always with you. <3
You can buy a strategy guide at Gamestop, Amazon, Certain Book Stores, and other places.
if you mean seviper then you can get it in the safari zone. to learn how try looking at the pokemon marriland johto safari zone guide.
There is no best Pokemon on Pokemon HeartGold.
Yes there will be a guide for those two games, But if you want more secrets and everything you need just ask me,Spectra.I will answer all Pokemon questions each Saturday.Thank you!
there is no Pokemon Mansion in Heartgold.
Yes, there is a Strategy Guide. You can pre-order it with the games, if you want.
They are not in Pokemon HeartGold
On amazon the hand book is $7.99 the strategy guide is $19.22. At wall-mart the guide book is $19.96.