Summary: Sleek interface, sizeable card library, challenging difficulty curve, and the most robust deck editor interface I've seen in a game. The DS was made for Marvel TCG. There are a few bugs that are as random as they are annoying (e.g. Bishop can't seem to use One-Two Punch) but it is overall a fun and challenging game.
Summary: This game has a great UI for the DS... much better then PSP or PC. The rules are difficult to understand at a casual level... if you play Magic the Gathering you should be right at home. The opponent decks are very challanging, so be prepared for many repeat battles... sometimes one mistake can mean loss.
Summary: I'm not much for reviews but I felt the reviews here were unfair. Let's get this out of the way first and foremost. This game is not for wimps or casual gamers. It has the steepest learning curve of any game I've ever played. Expect to spend a good day before you can graduate out of the n00b class and have any idea what you're doing. But I assure you, the time is well spent.
Excerpt: Muy buen juego, entretenido (una vez que entiendes como rayos se juega), con un buen reto (la maquina es muy inteligente), varios modos y un monton de cartas para coleccionar. Eso si, si nunca has jugado juegos de cartas coleccionables, mejor ni acercarse, ya que la interfaz del juego es pobre y no hace mucho por explicarte lo que esta ocurriendo en el momento, ademas de ser un juego con muchas reglas y fases lo que confundira a cualquier principiante.