go to Supercheat.com and search them up.
if you want to cheat to get all legendary Pokemon on ruby you have to play on the computer
You cannot breed Legendary Pokemon without cheats, except for Manaphy with Ditto.
there are i think 6 but it depends if you use cheats.
You can't catch shiny legendary Pokemon without cheats... sorry
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trade them all
it is impossible except for when you have cheats in Pokemon pearl,platinum,diamond
There are no cheats except for game shark
Moltres, Zapdos, Articuno, Raikou/Suicune/Entei.
No one knows. But there not working on it now.
Don't cheat and use Poké Balls!
you cant get every legendary of Pokemon without cheats or migrating and trading with people