Bandai's popular franchise makes its second appearance on Game Boy Advance in this sequel to 2002's Digimon: BattleSpirit. Once again, the game is a timed fighting contest taking place in one of seven side-scrolling environments, allowing characters to escape from harm's way or to re-position themselves on higher ground for more strategic attacks. The levels also feature hazards, such as pitfalls and obstacles to avoid, to further challenge players as they engage in the series of one-on-one battles against the computer or a friend.

Instead of reducing their opponent's life meter to zero, however, players use their Digimon to collect as many spheres (called D-Spirit Balls) as they can before time expires. Attacking a rival Digimon causes it to drop any collected D-Spirit, allowing the rival a chance to quickly snatch them up. The Digimon with the most spheres at the end of the time limit is considered the winner. Each of the seven characters offers different abilities depending on the type selected, and two-player simultaneous competition is supported via Game Link Cable.

New to the sequel is the ability to collect Ancient Spirits to transform into ancient forms, allowing players to channel more primal and powerful special attacks. The roster of playable Digimon has been lifted from the television series' fourth season, and a secret mini-game is waiting to be unlocked once the right conditions are satisfied. The ultimate goal is to defeat the evil Kerpymon, who has turned harmony into discord in the once-peaceful realm of Digimon World for the last time. ~ Scott Alan Marriott, All Game Guide