Challenge Machine

A Challenge Machine is a device in the made by Dr. Mason in his laboratory after the undefined finishes the game. In Pokémon Card GB2: Here Comes Team GR!, this is given to the player after completing the first deck. It is used in card duels.

Its purpose is to provide a challenge to players, serving as post-game content. Players can choose a deck, then they must battle against sets of opponents. Opponents are choosen among all those who the player already played against. Each set is composed by 5 random opponents that fulfill the above requirement, according to this pattern:
 * First, second and third opponents are always Club Member
 * Forth opponent is always a Club Master
 * Last opponent is always a Grand Master

Challenge Machine display the player's score wich corresponds to the maximum consecutive wins. Other saved records are:
 * How many times the player defeated 5 opponents
 * Present consecutive wins
 * Maximum consecutive wins

After each set of opponents are defeated, the player can choose to stop to play at the Challenge Machine and to resume later without losing the present consecutive wins record.