well try to find a cave or a haunted house try to get in battles while your in there while your in the haunted house BUT YOU CANT KILL GHOST YOU HAVE TO CATCH THEM that's the problem if its another ghost you cant kill it just buy ALOT OF POKE-BALLS FIND GASLY CATCH HIM AND GET THE HELL OUT OF THERE.
Catch a gasly and train it until it evolves in a haunter! Brothers and Sinners!
You cant catch Articuno in Pokemon Crystal, only in Blue, Red and Yellow. But i am not sure about that.
no.
yes at places that seem haunted
You can only catch Zapdos in Crystal by cheating. otherwise it is not in the game
I wouldn't. I'd catch your stupidity.
you don't catch articuno in crystal but you can get one from red, blue or yellow.
catch it in the wild
You cannot catch Mewtwo in Pokemon Crystal, but you can trade it from a Pokemon Red or Blue. Hope this helped :)
you catch it at night
First, you have to find them, then, you have to battle them, then, you catch them.
you cannot catch a Pokemon that is already owned by another trainer. you can only catch wild ones.