One Piece: Romance Dawn (http://www NULL.bandaigames NULL.channel NULL.or NULL.jp/list/oprd/) was a PSP game that released last year. It now has a Nintendo 3DS port, which released on August 8th in Japan. The game is an RPG that is based on the One Piece anime series and follows Monkey D. Luffy through the events of his childhood. That is not all the game has to offer. Other characters, like Chopper and Sanji, have their own stories to tell throughout the game as well. With over 600 chapters of the original anime being covered in the game, there is sure to be lots of fun to be had!
Aside from the main story line there are also dungeons that an be unlocked by obtaining treasure maps. These dungeons are randomly generated and at the end of each you have a boss battle. The boss that you encounter will be a previous one from the game who is even more powerful than before.
The 3DS version of the game has some extra content to offer the fans. For starters, the touch screen was integrated into it. A dungeon map was added and the difficulty settings were tweaked a bit. Another fun touch is the ability to fight Pandaman.
Source (http://www NULL.siliconera NULL.com/2013/08/09/one-piece-romance-dawn-has-extra-dungeons-and-pandaman/)