A system and method for adding a bonus round to any poker-style card game on a Nevada-style gaming machine. The bonus round is characterized by the existence of a match card. The match card is not part of the traditional poker hand (the "in-hand" cards) of the player, and only comes into play during a bonus round. The suit and value of the match card may be generated by the game machine or a remote game controller or backend server. The match card is then displayed in a manner visually associating the match card with one of the player's "in-hand" cards. A bonus is determined by evaluating the associated pair. Alternatively a bonus may be determined first, in which case the game machine determines a match card and associated card from the player's in-hand cards that is the equivalent of the predetermined bonus.