Pokemon Leaf Green Cheats For Gameboy Advance

How to make a Poke'ball into a Masterball:

When you find a wild Pokemon (any pokemon) You go to your bag and click Poke'ball.(Plain Poke'balls only!)Then when the Poke'ball is about to fly out you hold down the buttons A and B together.Then when the Poke'ball is about to open and catch the Pokemon you hold down SELECT and B together and the Poke'ball should become a Masterball...(Doesn't get a Master'ball look but it catches Pokemon 100% of the time!!)

Get Raikou, Entei, and Suicune:

To get Raikou, Entei, and Suicune you need to have completed the Pokemon League. You only get one and it depends on which starter u chose. If you chose Squirtle you get Raikou. If u chose Charmander you get Suicune. If you chose Bulbasaur you get Entei. Yo would be best to save your masterball for these guys. They are really good and are very hard to encounter. Good Luck!

All the legendary birds:

ZAPDOS-First buy as many ultra balls as you can hold/afford. Then make sure you have a pokemon that can paralyz,sleep,etc. (zapdos is found ia a powerplant on route 10)
ARTICUNO-same process as Zapdos accept u need escape rope 4 a quick get away. U also need a pokemon with strength and surf.
MOLTRES-(Must defeat Blaine and have acess to one island)U must go north via surf. (Exact Same process as Articuno)
HO-OH-Must trade over from Gold,Silver,orCrystal.
LUGIA-Must trade over from Gold,Silver,or Crystal.

get HO-OH:

Trade from Pokemon Collosium.