Okay, I didn't exactly word the question correctly. What I mean is how to complete the national dex the easiest way in white. I lost my black version and I got like all the events like mewtwo and all that other stuff. I want to complete the national dex but it is taking forever to complete the SS game and I don't have any gba stuff and my brother won't let me have his hacked stuff. I am also too scared to transfer legendary Pokemon because you can't get more than 1. HELP!!
In that scenario you can't complete it. You need soulsilver, white, heartgold, diamond, pearl, emrald or white 2. So you can't do it without other games or hacking.