CRYSTAL, as far as we know, WILL NOT BE COMING OUT FOR DS. Crystal was kind of a remake of both Gold and Silver versions. Like Platinum was a remake of both Diamond and Pearl. I would not exspect a remake of this game, sadly, because it is one of my favorites.
Soulsilver (Silver remake) and HeartGold (Gold remake) will be coming out Spring 2010.
heart gold, soul silver, silver, crystal and gold
May is from Gold Silver Crystal Heart Gold and Soul Silver
HeartGold and SoulSilver are the remakes of Gold, Silver and Crystal.
Only in Silver, Crystal, Gold and Heart Gold, Soul Silver.
safari zone but if you have silver,gold,crystal,heart gold,or soul silver you get it in joto
The only way you can get to the Johto region is by playing Heart Gold, Soul Silver, Gold, Silver, and Crystal.
heart gold, soul silver, and crystal(old)
In Pokemon Gold/Silver/Crystal/Heart Gold/ Soul Silver you can have it as a starter but otherwise the only way to get it is from trading.
You can use a Cyndaquil as a starter Pokemon in heart gold, soul silver, gold, silver, crystal and diamond pearl platinum.
Crystal, Diamond, Pearl, Platinum, and I would imagine Gold, Silver, Heart Gold and Soul Silver.
there is no ice path in Pokemon platinum. it's in johto (heart gold/soul silver/gold/silver/crystal)
Well in travel wise, probably Soul Silver, Heart Gold, Silver, Gold, or Crystal. They can travel to Kanto.