This is not possible unless you happen to find an Action Replay cheat, in which case you might as well just use the "spawn 999 Master Balls" cheat and save yourself some time. That code is insanely easy to find for all versions of the game.
There is NO other way to make a Pokeball into a Master Ball, no matter what imbecilic "updownB" kinds of "cheats" you've heard. There is, however, an equation you can use to calculate whether or not the Ball you're about to throw will catch the Pokemon you throw it at. Simply search for "catch rate wiki" and select either the Wikipedia or Bulbapedia article, and one should have it alongside an indepth explanation.
If you're not adept at math, this equation is not suggested.
No.
its verrry rare but if you try B+down or A+any
YOU CANNOT MAKE A POKEBALL WORK LIKE A MASTER BALL!Unless you use a cheat code.As far as I know,you can use a Timer Ball to act like a master ball.Wait for at lease 55 turns or more for the Timer ball to work.
you cant its impossible
A masterball :)
MasterBall
the strongest pokeball is the masterball. the masterball can catch any Pokemon out of the 493. it doesnt matter what kind of Pokemon it is, the masterball can catch any Pokemon.
Masterball. (Cresselia)
You can't.
its a pokeball a bit like a masterball. it's got a high catch rate
You use a masterball.
he's right but if ou have emerald you need a masterball for kyogre