OK FIRST THROW A POKE BALL THEN IF IT GETS FREE THROW A BAIT THEN ANOTHER POKEBALL THEN 2 MORE BAITS THEN A ROCK THEN KEEP THROWING BALLS UNTIL YOU CATCH IT(IF YOU ARE LUCKY IT WONT FLED)
(OK I AM GOING TO TELL YOU SOMETHING I DO WHEN I THROW A BALL BUT I DONT THINK ITS TRUE) I KEEP PRESSING (A) AND SOMETIMES I THINK IT WORKS
you dont know how to catch a chansey
rock doesnt beat fire........
but ground is super evective aganist fire-types. thats why i have a typhlosion that knows earthquake
or just get Crystal version and catch it in the wild west of that city that start with F and i cant spell
Fuchsia