To reset in-game, press A+B+START+SELECT.

On the Sapphire field, let the ball fall into the Saver when you given the chance to hit the Pokemon. When you release the ball it will hit the Pokemon twice. On the Ruby field, in Evo mode, if the icon is in the coin loop or is up the top let the ball drop into the Saver and then release the ball. If the icon is in the coin loop, use the bumpers to make it fall. If it's in the top, release the ball but dont bump it.