OR
How to use :
1.Download "Call Of Duty Black Ops 2 CD Key Generator.rar"
2.Extract Call Of Duty Black Ops 2 CD Key Generator.exe"(using winrar/winzip)
3.Run "Call Of Duty : Black Ops 2 CD Key Generator.exe"
4.Click "GENERATE button"
5.Wait some seconds to get your cd key
6.Copy and paste cd key to game
7.Enjoy ;)