If you're referring to the Secret Codes for the 2 Special Pokémon available in "Battle Revolution" then I believe it's possible the codes can only be activated after you beat the game and therefore acquire the special Pikachu Mystery Gift.
I think it's The Whale by Roger McGuinn and it may well have been on the album Cardiff Rose but I'm not sure. I know I have a copy of it somewhere here
How DES works.
Encryption of a block of the message takes place in 16 stages or rounds. From the input key, sixteen 48 bit keys are generated, one for each round. In each round, eight so-called...
When you go into the Jubilife City tv station go upstairs where there is a man and a woman standing next to each other. Go up to the man and select the words "everyone" and "happy" and then "wi-fi"...
the mystery gift works if you contact someone who has something like the old sea map or the aurora ticket. if you mix records with them, you also get the aurora ticket or whatever they have.
Well if there is a special giving away of a Pokemon for example Jirachi then go to game stop with your ds make sure you have platinum and get the Pokemon hope this helped