I want a snubbull but I don't have the games where you can get them. is it a swarm there or in white 2?
Snubbull is only a swarm Pokemon in Platinum/Pearl/Diamond. It is unobtainable by normal means in Gen V games, and has to be traded, hacked or bred from a Granbull. It can also still be found in the Dream World (Spooky Manor)
No, you can't even get it.
The best way is to PokeTransfer from a Gen. 4 game.