How do you get Salamence?

[CelebiMaster]

Or that wierd snowball that glacie has? Or the Blue thing that looks more like a monster than a pokemon that the champ has?

[conspiracy]

1. You can get a Salamence by first catching a Bagon at Meteor Falls where you fight the Dragon Trainer and where Team Aqua/Magma steal the meteorite.
*It evolves into to Shelgon at LV. 35 and then to Salamence at LV. 50

2. You can get a Glalie by catching a Snorunt at Shoal Cave after 6pm, and it evolves into the wierd looking snowball thing (Glalie) at LV. 42

EDIT: The final thing you are looking for is a Metagross...
*you get it by beating the Elite 4 and the champion which I assume you have already done. The you fly to Steven (the champion's house) in Mossdeep City and take the pokeball. Inside the pokeball is a Beldum that evolves into a Metang at LV. 20, and then into a Metagross at LV. 45