Sorry but there isn't any cheats for Sapphire or emerald because they're GBA games (gameboyadvanced)
there might be a cheat but otherwise you have to catch them all.
get an action replay, get the Pokemon modifier cheat for it, then catch all the Pokemon.
Cheat, trade, migrate, catch
yes but you have to catch one at a time
You cannot catch all the pokemon in emerald. You much catch the maximum for that game, and trade or cheat in the rest.
really long
You can cheat. Or if you don't like cheating; catch and trade for them.
if you don't have that Pokemon just catch it and evolve it
Never in any Pokemon game can you "Catch em all". (UNLESS you cheat with the Action Replay) -LOLz.
Either catch them all see some and catch the rest or use the action replay cheat.
yeah i did a cheat of garitina
there no cheat to catch mew in pokemon ruby