No you cannot catch 'poop' on Pokémon Diamond or any Pokémon game.
You are not able to catch the regis in Diamond. You can catch them in the Game Boy Advance version of Pokemon Emerald.
Sorry to say, but no, you cannot catch a Palkia on Diamond version. You catch a Dialga on diamond, and Palkia on pearl. You would have to trade to get one.
You can't. You can only catch it in pearl and platinum.
You catch them in the solaceon ruins in solaceon town
In victory road.
You cannot catch rayquaza in diamond
You can't catch one.You need to trade it from Pokemon Diamond/Pearl/Platinum version
You catch it at the top of snow point city.
You cannot catch a slowpoke,slowbro or slowking on diamond version. You can on Pokemon pearl version though.
You need to trade or migrate it.
use ultra balls
You can't yet.
A Master Ball
U CANT CATCH HIM u have to trade him or hack the game
Darkrai is a dark type of Pokemon. You can catch one in Pokemon Diamond version on Newmoon Island but you need a membership card.
no you must trade it from pearl diamond or platinum version
use poke balls on it
HE will return to the distorted world and you CAN'T CATCH HIM I REPEAT CAN'T CATCH HIM.
Unfortunately, you can't catch a Red Gyardos is Pokemon diamond, but you can catch one in Pokemon Heart Gold or Soul Silver. It'll be at Lake of Rage.
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