i had heard that you can catch latios and latias depending which version you got. In my case, i have pokemon soul silver so i want to know if i can catch latios or latias in my version.
Latios is exclusive to Soul Silver. It's a roaming Pokemon, so it could show up anywhere at any time. It's simple. Go to the Pokemon Fan Club in Vermillion City, then walk out. Steven, the Hoenn champion should walk up to you and show you a photo of Latios, this then activates Latios roaming around Kanto.