The end of route 25 only AFTER you encounter him 7 times :P
Well I do have the game. I did see suicune in it.
Go to the place where you find misty and her boyfriend
go to northern cianwood city and then its all up 2 u guys
Yes it is hard but do able
you find the legendary dogs in tall grass!
if you have beaten misty, go to where you found her by bill's house north of cerulean
get a life dude
After Mount Mortar, Suicune will travel to Kanto where you will see it Vermillion City shortly after you arrive on the SS Aqua.
The Shiny Suicune was a game stop event held before Pokemon black and whiter where releases. You had to get either suicune riakou or entei at the event of your Pokemon Pearl/diamond/platinum/soul silver/ or heart gold version, and then transfer them to your Pokemon black/white version.
Suicune,latias,latios sorry that all i got so far in my heart gold....
There is actually nothing you do with Entei, Raikou, and Suicune (Being a legendary dog-catcher myself,). Just the pleasure (Not really) of having the three.
after you have defeated all 16 gyms go to were you found misty and his boy and suicune will be there.