BradyGames Kingdom Hearts 3D: Dream Drop Distance Signature Series Strategy Guide includes the following:
Two Heroes Questing for Keyblade Mastery
King Mickey and Yen Sid prepare for an impending threat by putting Sora and Riku through the Mark of Mastery exam. They are sent into the Sleeping Worlds, where they face new enemies and make new friends in unfamiliar worlds. If they can successfully unlock seven Sleeping Keyholes and return to their world, they will retrieve a great power and be deemed true Keyblade Masters.
Complete Walkthrough - Follow this guide to gain knowledge about each Sleeping World, the characters within them, Flowmotion tricks for enemies in specific areas, and tips to achieve 100% completion.
Dream Eater Bestiary - Everything you need to know about fighting Nightmares and creating, collecting, and training powerful Spirits to aid you in combat.
Comprehensive Appendices - Special information and statistics about Command Attacks, spells, Keyblades, important items, and more!
Detailed Maps - Easy-to-use world and area maps for each characters walkthrough give you the locations of pertinent items, challenges, important events, and Link Portals.