Caution: Not for beginnersThis game is is not an introductory into the world of yu-gi-oh. There is no tutorial in how to play the card game. You are expected to know how in this game, and if you don't then pray you know someone who can teach you on the fly. That being said, you really only need to be a beginner at the game at first. The first AI's are simple to beat, do not play their decks to the fullest and can easily be 'frightened' into playing defense when they really should be playing offense.Caution: Build, customize, expirement or loseThat said, the game does offer a multitude of cards. Do not expect your mix and match starter deck to lead you to beating the game. Be willing to expierement as you purchase new packs with duel points, or DP, the in game currency provided for dueling as well as can be found. If you do not adjust your deck to a particular strategy, prepare for the frustration of being unable to progress. Once again though there is an upside. With over 4500 cards, there is a great many strategies you can base your decks on, and just as many 'tweaks' you can do to make that strategy better.Caution: Frustrating trapsWe asked for it in past games, and we have it in this one: The ability to play a trap at every applicable moment. Seriously, I don't think we knew what we were asking for. Be prepared to by rapidly hitting the B button if you want to save a trap or quick play magic card for later. Just for an example, this is how an opponent's turn.