How to get unlimited Master Balls!
To get unlimited masterballs you must be in a battle with a shadow pokemon.
-a master ball (of coarse)
-atleast 2 of your own pokemon
-atleast 1 pokeball
What to do:
First open the items menu. Then select the masterball with the first pokemon. With the second Pokemon open the the items menu and press Y. Switch the masterball with the pokeball. Your second Pokemon will still be able to attack. If done correctly your pokeball should catch the shadow Pokemon without fail. This is a glitch that should be performed on the 3 legendary dogs, Metagross, and Tyranitar.
Added by: m e1515 Jan 25th 2008, ID#8182