Join the Crew of the Nightswan to uncover the secret of Operation Psi!   Complete Walkthrough Every mission walkthrough includes expert advice on deploying leader units and earning an S-Rank.   Bonus Missions Learn how to unlock and clear every bonus mission and acquire rare items.   Equipment Listing This comprehensive listing includes the benefits and penalties for using every item.   Combatant Breakdown Whether friend or foe, you get vital information about strengths, weaknesses, mobility, and much more.   Area Maps For each mission, hard mode mission, and bonus mission you get the locations of enemies resources, and hidden items.   Platform: Nintendo DS Genre: StrategyThis product is available for sale in North America only.