You can not get a mew in Pokemon Diamond without trading or cheating (HIGHLY NOT RECCOMENDED.) but there is a way to get a mew in the following games: Pokemon Blue, Pokemon Red, or Pokemon Yellow. look up "Mew Glitch" in Google search and find out how. hope this helped!
The only way to catch it would be to migrate to pal park and catch it there, but you can trade for it at the gts if you have wi-fi
Pokemon pearl
You can't unless you use an action replay code to catch or download an event with Mew.
Nope, you have to trade him.
There is no code to get all. You can get all with action replay, but you must catch them one by one and also you can have 999 masterballs if your having trouble catching them.
in one of the johto cities.
you can't catch mew and you can't trade it from pearl platinum diomand heart gold or soul silver so no you can't
he doesnt even exist!
you can not catch it you can only get it from a trade
If You Meant To Catch To Mew,No.
No, you cannot catch a mew in Pokemon Platinum without cheating.
You cant catch mew.
You can't get mew in firered or leafgreen.
there no cheat to catch mew in pokemon ruby
no
a
Pokemon pearl
there is a mew in Pokemon soulsilver but you need to catch all leadndery Pokemon including event Pokemon