Press x to bring up the menu, go down to save and hit y
Go up to where you get your starter Pokemon, save, select Snivy, and if it isn't shiny, reset the game and try again. Considering that the chances of finding a shiny Pokemon are 1/8192, it can take a very long (or even very short, depending on how lucky you are) time to get one.
Save your money. Pokemon HeartGold and SoulSilver look absolutely awesome. I've played a couple Pokemon Mystery Dungeon games and grew bored with them very easily.
It's the system in which Gameboy Advance pokemon games save their data from if you don't have it installed you cannot save the game.
No you cannot. There are some fakes that do allow you to save. The vast majority do not
Only one, like in all Pokémon games.
Unlike past Pokemon games, you have to delete you existing save file before you can save a new game. You can do that by holding Up+Select+B on the title screen (where it says Pokemon Diamond or Pokemon Pearl) Deleting the save takes a minute or two
The site called Playr allows you to play all the Pokemon games (or at least several) for free, you can even save!
No, like all other Pokemon games you can only have 1 save file.
You can only have one save file at a time on any Pokemon game.
No like all pokemon games there can be only one save data for the game.
yes they should do and if they don't use the old gold & silver trick and save 3 times
Pokemon X and Y games do sometimes require you to update your 3DS because of a "game save" bug on some of the games.