yes, Pokemon can breed in Pokemon crystal but the only way to breed them is to give them to the day care people (old man and woman) who are south of goldenrod. give them about a day in the day care and then the old man will be standing near the Pokemon. go speak to him and he should say that they were surprised because your Pokemon laid an egg! walk around for a while and it should hatch. the time it takes depends on what Pokemon is inside.
Pokemon Crystal is for Gameboy Color and LeafGreen is for Gameboy Advance. The two are not compatible with each other, so, no.
Yes .but only with the connection.
no
my sisters done it with me so yes
Nope. sorry
EDIT: I'm not sure either. i tried to trade from crystal to leaf green, and it didn't recognize that i was trying to trade. im not completely sure i think you have to have two-hundred Pokemon on fire red then you can trade from Pokemon crystal.im not sure you can do that with crystal
you cant trade Pokemon diamond pearl with leaf green. You can only do that if you trade Pokemon from leaf green to diamond pearl.
trade from fire red or leaf green trade from fire red or leaf green
all Pokemon can be traded (even eggs) to Leaf Green with out the nat. dex. with the nat dex. you can trade to emerald, ruby and Sapphire. but not to the older games like crystal and red
unfortunetly not
the only way to get mewtwo is to trade it from Pokemon red,blue,or yellow. in leaf green and fire red he is in cerulean cave cheat codesxD
No only Fire Red and Leaf Green and trade it from Pokemon fire red and leaf green
Trade that Pokemon from Pokemon leaf green! :)
Trade it from pokemon fire red or pokemon leaf green