Ultra balls.
go to a poke mart go to a poke mart
You buy them in the Pokemon markets.
Yes there is a cheat for it in emerald which i have but if u use it ur key items will be messed: Have all Poke balls 085938bb 99ff313d 2dafd739 5d796510
you can get a master ball in the team aqua hideout. Its in a room with four poke-balls.
You can't catch it using Poke Balls, 'cause it is'nt in Pokemon Emerald... But you can trade with other players, of other versions of the game...
WELL.. the best balls are ultra balls.. you have to take alot of ultraballs.. well it work for me i even caught it when it had all the health..
you can get all of the poke balls you could in Pokemon ruby, Sapphire and emerald. that being poke balls great balls ultra balls net balls and only 1 master ball but not only though's you can get dusk balls luxury balls and also 1 master ball so yous it wisely and sorry if that's not all the poke balls witch I'm pretty sure its not but that's not all i would be able to tell you more but some 1 stole my Pokemon pearl so sorry again
There is no poke radar in emerald. Only in diamond and pearl and platinium
it is at the end where the 4 poke balls are in the office, with i think a nugget, a master ball and electrode's :)
Each type of poke ball have different capture rates depending on what ball it is for example Quick Balls are best when used at the beginning of a battle against a wild Pokemon.
Use your strongest Pokemon, do not attack, buy 15 Ultra Balls, 5 Great Balls, 20 Poke Balls, and 6 Timer Balls. Keep using the balls, save 5 of the Ultra Balls then use a few Timer Balls. They are guaranteed to catch Deoxys.
Pokeballs, greatballs, ultraballs, masterballs, timerballs, repeatballs, nestballs, netballs, luxuryballs, and you can also have from ruby/sapphire/emerald premier balls and dive balls but the dive balls will not work in firered and leafgreen because you can't go underwater.