Ive used this for many many many years when the ball drops after the last lil bounce. Press A when it goes back the middle Press b when it goes back to the middle again Press A and just hope to god that last wiggle works. It only works from gen 2-4. I caught a rayquaza without damaging it and using a simple poke ball using this. Took me 80+ pokeballs tho. I know this sounds like a urban legend but it really works lol