Kōsoku Card Battle: Card Hero is a card-based role-playing game. The protagonists are Satoru and Haruka, who live in a town where the game Card Hero has become very popular. The main characters wish to become master of the game by collecting different kinds of cards. During the quest, the player encounters several dueling opponents including the master rival, Kiriwo. To become card champion, the hero must battle several adversaries who impede the path of becoming the master of the card hero deck.
The player turn is determined by a game of Rock Paper Scissors. The participants then shuffle their decks and draw 5 cards. At the beginning of a player’s turn, 3 stones are always drawn along with 1 card. After that is done, the player may play any cards he wishes and command his Monster cards. All of his Monster cards can be commanded in the same turn, but a Monster can only be commanded once in a turn. The other player then begins his turn.The objective of the game is to drain your opponents health points by attacking their deck of cards, with your own.The player holds stones that are used to play cards and four monster card slots (two in the front row and two in the back). Player attacks the opponent’s master to drain his health points to 0 and win the game. As your monster cards win battles, they increase levels and attain higher health points and are able to deal more damage.