None of the legendary dogs will be added to your pokedex until you see them for the first time. Work on filling up your pokedex and you will see them eventually.
you cant find raiku in Pokemon pearl just Pokemon gold
For a complete answer: visit gamefaqs and search for Pokemon Gold & Silver (or whatever version you are playing on) if you must know: you have to encounter Raiku first (I don't know where he is) it is a very tedious process that involves looking in your pokedex you have to look for Raiku and look at location-the pokedex will tell you where Raiku is but he constantly moves The direction he travels is random, just keep pursuing Raiku until you corner him. Don't use fly (he'll completely change location and be further away if you do that).
you cant you have to evolve graveler
you cant
You will only find Raikou if you chose Squirtle as your starter pokemon. After you receive the National Pokedex from Oak, Raikou will begin to roam Kanto. the other way is to have a friend trade you one.
You have to have the national pokedex, because you cant find a lot more Pokemon without it. :)
you cant find it, you have to see all the Pokemon sapphire.
yes
u cant find him unless u have an action replay with the Pokemon modifier and pokedex cheat.
Pokemon number 150 is Palkia, you can get it on the pokedex by trading, battle a friend or seeing the old lady in the library who shows you a picture of Palkia which is then added to your pokedex.
litsen you cant get shiny lugia or any legendary Pokemon without AR codes.
Ok now the best thing i suggest you do is: on wiki, if you were trying to find number 75 for example, you would send a question in asking what Pokemon number 75 is and where you can find it. Do that and I'm sure your pokedex will be complete in no time! Hope this helped = )