Pokemon Pear [and Diamond] is located in the Sinnoh region. You will not be able to get to the Johto region unfortunately. Sorry.
No
You can't. Sorry.
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No, you need to trade or transfer them from Emerald.
not originally, but if you migrate them then yes.
Sorry No you can see some of the johto league Pokemon on Pokemon diamond and pearl if you go to the battle tower. ive seen a totodile and a cynaquil already. ;)
You can't get to Johto region in Pokemon Diamond/ Pearl, but you start there in Heartgold/ Soulsilver.
The oldest Pokemon games to feature Johto are Gold, Silver, and Crystal. FireRed and LeafGreen partially feature Johto after you beat the Elite Four. The newest games to feature Johto are HeartGold and SoulSilver.
no u dont =)
Obtain 200 Pokemon in Pokemon ruby, sapphire or emerald, then go to professor birch and you get to choose one of the johto starters, then you migrate the starter you chose to Pokemon, diamond, pearl, or platinum.
All the Pokemon that didn't exist in that particular region. Example in firered and leafgreen you can get johto and hoenn Pokemon like lugia or rayquaza. In diamond and pearl you can get stuff from kanto and johto and hoenn.
The Johto Gym Leader Jasmine from Olivine City is in Sunyshore City.