Toons And Relenqueshed Cards
Well, to get a bunch of toons, beat Pegasus in triple duel, than battle him a bunch of times in a single duel. If you win, Pick Obelisk the tormentor and you should have about a 75% chance of getting a toon or Relenquenshed cards.
To change the background of the main menu, Use a
field magic card in your battles and when you
get back to the main menu, Press X. A screen
will come up saying select background. The ones
you can't use are faded. There is only usually 1
background when you start a new game.
Easy Magic And Trap Cards
To get easy magic and trap cards, unlock the Rare Hunter in triple duels. Then,
just keep defeating him until you get the cards that you need. He has all the
best magic and trap cards required for a deck. Note: He three sets of Exodia and
multiple limited cards such as Pot Of Greed.