Based on the animated TV series,Monster Rancher BattleCard will have you collecting discs and transforming them into collectible battlecards. Once you've acquired enough battlecards, take them into matches where you can use them to attack, defend yourself, increase your power and intelligence, evade adversaries, and more. Each victory will bring you closer to the Master Class and toward becoming a Monster Rancher Master. Best of all, you can compete against other Monster Ranchers with a separately sold Game Boy link cable.