yes and no.
you do not catch a shieldon on pearl or diamond. you dig up its fossil ( armor fossil ) in the underground, then you go to oreburgh city and get the bloke in the museum to make it live again. NOTE: the fossil is NOT on diamond, only platinum and pearl. you can dig up the fossil as many times as you want.
You cannot catch more than one Mewtwo. The only way to have more than one is through trading with someone else with the game.
No. You can only catch Rotom once.
Beat the Pokemon League, and you will be able to find all but one of the fossils of the ancient Pokemon. (For Diamond, all but Shieldon's fossil are available)
Shieldon (Armor Fossil) are only available to Pearl, similar to how you can get Cranidos (Skull Fossil) in Diamond but not in Pearl. In Diamond, you can get a Shieldon by trading with a friend who has one in Pearl.
I do think that a person can have more than one virus at a time because if you are in a very contaminated area then you can catch more than one virus
You cannot, there is only one in the game (unless you trade).
It is very interesting to find out that straws are actually more easily to catch fire than wood...!
There's one simple answer: trade! Cranidos is to Diamond as Shieldon is to Pearl, so find a friend who has Pearl and trade with them.
when i play Pokemon platinum theres no one that want to trade Shieldon for strong Pokemon i hope you understand it
No. Lugia is a legendary, which means there is only one of them.
to catch 200 Pokemon you have to have buy 400 (because it takes more than one throw) Pokeballs go catch them!
to catch 200 Pokemon you have to have buy 400 (because it takes more than one throw) Pokeballs go catch them!