Instead, the player takes a short "personality test" to determine his starting deck and then can win additional cards by defeating opponents as well as new monster cards by defeating dungeon bosses.

While a code system is also in place, only a select few cards catering to a single monster along with some general support can be obtained through this method.

Monster cards start in play, have HP, and a type (either ground or air).

To use these cards, a player usually has to pay an activation cost in the form of a resource called "guts".

The game consists of a character traveling to dungeons to obtain sacred stones needed to generate new monster cards and fighting ranked battles to increase their level to unlock new dungeons.