I know that the published tricks don´t work but i remember one that really worked, but I forgeted. It took something with the control pad and the ab buttons. When you launch the pokeball, it makes contact with the poke and the pokeball don´t bounce even once. It was hard to make the trick work, but it does. Since in GSC the trick doesn´t worked i forgoted it and now i try to remember and nothing more cames.
The trick is hard to get work but with practice it used to be easy after all. IT WORKED 100% OF THE TIME IF YOU CAN MAKE THE SEQUENCE IN TIME.

Somebody can help me?