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
I don't really know the real answer, but so far, I don't think so.
You are most likely going to be mad when you find out... According to the Pokemon Strategy Guide, Smeargle can be found in the Ruins of Alph (in the Johto region, NOT Kanto). It is extremely hard to be found here... If you are too lazy AND you have Pokemon Platinum, Pearl, etc., you can import Smeargle from there. It is MUCH easier to be found there.
I put a link to a guide all about legendary pokemon in HeartGold in the related links.
Yes, you have to buy it somewhere.
You have to trade from diamond,pearl or platium :) thats what it says in the guide book.
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.
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!
You can get lotad in the safari zone if you place the right items. to find out exactly how look at the pokemon marriland or serebii safari zone guide.
if you mean lunatone then you can get it in the safari zone if the right objects are placed. to find out exactly how visit the pokemon marriland or serebii safari zone guide.
try an online pokedex or a strategy guide book
You will need water type Pokemon (and maybe a few others) that can learn the move Surf.For a further detailed guide, visit this address:HeartGold_pokemon_how_to_get_around_the_ruins_of_alph
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.