If you do not know by now, Kingdom Hearts is a manga that was created based on the game. As a huge Kingdom Hearts fan, the game being my favorite, I have to point out that the manga is completely terrible compared to the game. The art work, though done by Tetsuya Nomura, seems to have been drawn very lazily compared to the animations and game play presented in the game. The story essentially sticks to its original gaming routes and the characters are pretty fair. However, reading this manga is just not very enjoyable if you've already played the game. The manga is especially missing the whole concept of game-play. For example, in a boss fight, Sora would simply be whacking his Keyblade around in random directions at his enemies, whereas in the game you would need certain strategies and skills to beat your enemies. Also, this manga is read from left to right so when you read you often get confused and tend to read from right to left making things weird for yourself. Overall, your better off buying the Kingdom Hearts games to truly experience what Kingdom hearts has to offer. Game: 10/10
Manga: 5/10
Don't be mistaken SQUARE ENIX games especially this one are the greatest. But when it comes to manga, your better off watching/reading: Fullmetal Alchemist, Fullmetal Alchemist Brotherhood, Pandora Hearts, 666 Satan, Kuroshitsuji, etc.

Kingdom Hearts is a true emotional game, but as a manga it lacks the experience that the game represents.