There are no cheats for ANY Pokemon games unless you have a gameshark
Would you count gameshark? If not, otherwise glitches such as the duplicate Pokémon glitch.
get a gameshark
Look down in the sources for the cheats.
DO NOT USE GLITCH POKEMON CHEATS FOR THE GAMESHARK. They will delete your game file, and could permanently corrupt your gameshark.
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There are no cheats on any Pokemon games you have to use a gameshark but they can delete your data!!
That or Action Replay
yes. there are AR cheats for platinum.
yes on a gameshark for the gameboy advance
no it doesnt have any cheats
Im afraid you cant.Deoxys an only be obtained by migrating or using a cheat device(gameshark,action replay ect.)