Once you have seen it in the Burnt Tower, it'll be in the grass randomly. It takes patience to find it.
catch it in the wild
it runs about all over the map so its just luck if you run into him
you cant find raiku in Pokemon pearl just Pokemon gold
no like in Pokemon gold,silver,and crystal version.
Raiku Kemppi's birth name is Raiku Jaanukka Pennanen.
Here is a battle of Raiku and Onix. Raiku uses shockwave on Onix, paralyzing it. Then Raiku uses thunderbolt on Onix causing little damage on it. Raiku uses thunderstrike on Onix, causing little damage. Onix uses earthquake, killing Raiku.
you have to beat elite 4 then catch all unowns.
unfortunately you can't catch all 3 however depending on the starter you chose lets say its bulbasaur then you will find entei, if you chose squirtle you get raikou, and charmander gets you suicune. i don't know about gold and silver but in crystal you catch suicune in a standard battle at the tin tower ant raiku and entei will be in the wild but will always run from you
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 must defeat the elite four then find them in the grass because there are roaming. Also if you chose squirtle then raiku appears, if you chose bulbasaur then entei will appear, and if u chose charmander then suicine will appear They have to have been your starter
you have to start with Bulbasaur.then beat the elite 4.after that Raiku will become then you have to look for it
Makoto Raiku was born on August 23, 1974, in Gifu, Japan.