Si la dificultad te supera o quieres experimentar el juego al máximo, estos códigos (Action Replay / Gameshark) funcionan con la ROM en español:

The defining memory for most Spanish players isn't the victory; it’s the grind. The economy in Forbidden Memories is legendary for its stinginess. You earn "Starchips" at a glacial pace, while powerful cards cost 999,999 chips. This meant that obtaining a card like Bright Castle or Meteor Black Dragon required cheating devices or hundreds of hours of farming the Low Meadow Mage.

Spanish-language guides often include the following technical data: Yu-Gi-Oh! Forbidden Memories (USA)