Second Master Ball

A Second Master Ball is a Poké Ball that is a Master Ball that you can get in certain games.

Red
You cannot get a Second Master Ball in Red.
Green
 You cannot get a Second Master Ball in Green.
Blue
 You cannot get a Second Master Ball in Blue.
Yellow
You cannot get a Second Master Ball in Yellow.
Gold
You cannot get a Second Master Ball in Gold.
Silver
You cannot get a Second Master Ball in Silver.
Crystal
You cannot get a Second Master Ball in Crystal.
Ruby
You cannot get a Second Master Ball in Ruby.
Sapphire
You cannot get a Second Master Ball in Sapphire.
Emerald
You cannot get a Second Master Ball in Emerald.
FireRed
You cannot get a Second Master Ball in FireRed.
LeafGreen
You cannot get a Second Master Ball in LeafGreen.
Diamond
You cannot get a Second Master Ball in Diamond.
Pearl
You cannot get a Second Master Ball in Pearl.
Platinum
You cannot get a Second Master Ball in Platinum.
HeartGold
You cannot get a Second Master Ball in HeartGold.
SoulSilver
You cannot get a Second Master Ball in SoulSilver.
Black
You cannot get a Second Master Ball in Black.
White
You cannot get a Second Master Ball in White.
Black 2
SPOILER ALERT! SPOILERS START HERE.
To get a Second Master Ball in Black 2, after you beat the game and become the Unova League champion, go to Team Plasma's ship defeat all the grunts, then find Colress and challenge him. After you beat him, he will say that he was saving it, but he might as well give it to you since you won.
White 2
To get a Second Master Ball in White 2, after you beat the game and become the Unova League champion, go to Team Plasma's ship defeat all the grunts, then find Colress and challenge him. After you beat him, he will say that he was saving it, but he might as well give it to you since you won.
SPOILERS END HERE.
X
You cannot get a Second Master Ball in X.
Y
You cannot get a Second Master Ball in Y.
Z 
You cannot get a Second Master Ball in Z.