No, there is no legitimate Action Replay code for Mewthree for Pokemon Diamond.
at the elite four using the good rod
You can't possibly catch latios in Pokemon diamond although you may get it there by using your ruby version if you have one to import it to your diamond. another way is to buy an action replay and cheat
You can only find it using an item you get from a Nintendo Event or using Action Replay.
You cannot catch totodile, chikorita, or cyndiquil without migrating.
You have to upload it from FireRed, LeafGreen, Ruby, Sapphire, or Emerald.
I don't think there is a Mewthree unless you use a cheat or something. You catch Pokemon by using the following: pokeballs, ultraballs, greatballs, masterballs, ect and you select them by pressing A and selecting `use`. there is no mewthree it is just a fake Pokemon idiots want you to think
No you can't catch deoxys by using cheats
You can only get Mewthree by hacking it into the Pokemon Pearl ROM. It cannot be obtained legitimately or by using the Action Replay.
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You cannot catch Kyogre native in Pokemon Diamond. You must import the mighty Kyogre from Emerald or Sapphire using Pal Park.
no its only avalible on a pokemon event
at the elite four using the good rod
You can't possibly catch latios in Pokemon diamond although you may get it there by using your ruby version if you have one to import it to your diamond. another way is to buy an action replay and cheat
Go to the Trophy Garden which is in the Pokemon Mansion. porygon is rare in Pokemon Diamond, so using the Poke Radar would be easier.
You cannot catch totodile, chikorita, or cyndaquil in Pokemon diamond or Pokemon pearl. The only way to obtain those Pokemon is to migrate them from a previous version of the game using the GBA slot.
At the summit of Mt. Coronet using the poke radar.
You can get Duskull by using the Pokeradar on Route 224 in Pokemon Diamond. You must use the Pokeradar at night in order to find and catch Duskull.