There is no way you can get your data back if its deleted Sorry =(
You can't. If it's deleted, it's deleted. You will never get it back. Just like all of the other video games.
no, you can not but you can if you have action replay
Unfortunately, You will have to restart your game.
first of all if you don't have a internet connetion the action replay is no good. try puting the game ID in the action replay. then go online to code junkies to get the codes back.
Complete the Whole Game on the 3rd Profile.
you just start a new game -_-
on the back of the ds game there will be a few letters or numbers that is the game id
I have the same game for the Gameboy and all I had to do was start a new game and the old one was deleted. I don't know if the same rules apply.
go to buy it at market
at the back ( the little lines)
no because its gameboy game and the ds only goes back to the game boy advanced