Select a new deck at the deck menu, then display the Editor Options menu. Select "Name Deck" and enter one of the following names to activate the cheat function.
A sound will confirm correct code entry.
Enter "whowantspie" as a name.
Complete card library (20 of each):
Enter "blvrtrsk" as a name.
While playing through Single Player Story mode, you are asked to play various puzzles. Do so. If you do play the puzzles and complete them, throw the match against the CPU. After your "dive", return to the main menu in Story mode and repeat the process.
You can net 2,000 points each time you do this, allowing you to buy a number of cards.