Check the boxes for and "Use cards from Kaiba the Revenge."
can be a tedious grind, but there are proven methods to bypass the hours of dueling and instantly access the full library of . The Common Method: File Swapping
Joey the Passion features a unique system where the opponent's deck difficulty scales.
The intended path to completion is a marathon of attrition. With over 300 cards in the total set, each duel yields only 1-3 new cards (and often duplicates). Beating the final boss, Seto Kaiba, unlocks a “Bonus Duel” against a character like Paradox Brothers or Bandit Keith, but the drop rates remain stingy. The community estimates that unlocking every card through legitimate play would require over , each lasting 5-15 minutes. This is not a game; it is a test of endurance.