No, it is COMPLETELY DIFFERENT. Game Sync ID is required in order to put your game online. Game Id is only for your individual type of game whether Pokemon Black, White, Heartgold, Soulsilver, Platinum, etc.
You use your computer to game sync with yr DS and must have a pokemon.com account
game sync on c gear
First, go to game sync settings on the intro screen. There should be a code that you need to enter as you create your online PGL profile.Use the C-Gear to access Game Sync.
April
save after midnight.
When you turn the game on, on the menu after pressing start/A when Zekrom is on the screen there is an option where you can view your game sync ID.
Use Game Sync on the C-Gear.
because there is something wrong with it
Game Sync is a compex C-Gear operation that corresponds with Pokemon Dreams and the Entralink. Wi-fi connection needs to be available.You also need a Pokemon.com Account.
first get the c-gear after beating the first gym leader. then save and restart your game. press start at the title screen but DO NOT LOAD YOUR GAME FILE YET!!! scroll down to the option called GAME SYNC SETTINGS. connect to nintendo wifi and set up your game sync id. next go to www.pokemon-gl.com and make an account. register your game sync id to your account. next play your pokemon white and choose the game sync on the c-gear. tuck in any pokemon from the pc boxes. now go to the dream world on your pokemon.copm account. read the instructions for how the dream world works and when you are done wake up your pokemon the same way you tucked it in. lastly warp to entralink through the wireless option on the c-gear. if you read what the people there say you will have no problems.
yes
Once you have gotten your Game Sync ID and a Global Link account, it will take you to Dream World when there is wireless access around. :3 You get your Game Sync ID, by connecting to the internet with the "Game Sync Settings" in the main menu at the beginning. You make your Global Link account, and sync it up to your game. If you do that, you can participate in Global Link events such as Pokemon giveaways, like the Arceus Giveaway in February 2012, C-Gear Skins, and different Musicals to add to your game! It's the only way to get most Pokemon with their Dream World Ability, and the only way to get berries!