Cardfighters Clash 2 is the sequel to the first game with the same name. It features a new card type, new art, changed cards, better AI, and more secrets and opponents. It is also one of the rarest games, with very few made before SNK died for good. It is available in ROM format and any more info really can be found at Gamefaqs. I wish I could play the game in English. Text Translations are available, but they are awkard compared to game hacks.