In Dragon Quest IX: Sentinels of the Starry Skies, players begin their adventure as a city guardian who is sent to retrieve a sacred tree's fruits, which have the power to grant wishes. Players will travel the world, conquer fearsome monsters and unravel an epic storyline. During their journey, players will encounter mighty opponents in fast-paced battles, and also interact with a colorful cast of characters.

Nintendo's Dragon Quest IX: Sentinels of the Starry Skies contains special modes that let players share their adventure with others, allowing up to 4 players to team up via a local wireless connection and experience the fun of tackling challenging monsters and dungeons cooperatively with their own characters. Players can even leave the game active in their backpacks, pockets or purses and still interact with other players via an interactive Tag Mode. Information about players' characters can be wirelessly transmitted to others, and treasure