Rules say I can't post in your welcome thread again, but...
Regarding Sapphire and Platinum, you can transfer Pokemon from Sapphire to Platinum (and Heart Gold as well) but once you do, you won't be able to get them back onto Sapphire. It's done through a feature called "Pal Park" that's unlocked once you beat the game.
Regarding Sapphire and Platinum, you can transfer Pokemon from Sapphire to Platinum (and Heart Gold as well) but once you do, you won't be able to get them back onto Sapphire. It's done through a feature called "Pal Park" that's unlocked once you beat the game.