One Piece: Unlimited Adventure (アンリミテッドアドベンチャー Wan Pīsu: Anrimiteddo Adobenchaa) is a video game for the Nintendo Wii based on the manga and anime series One Piece by Eiichiro Oda.
Story Mode
A basic adventure game with platforms, puzzles, and item collecting. To go farther in the game, the player must collect certain items for Franky and Usopp to make new tools in order to create new paths. Fishing and bug hunting are also a major side quests; certain bugs and fish have to be captured to break seals.
Vs. Mode
The player can choose from any of the over 40 characters that have appeared in the game (including basic enemies and final boss) in the battle mode. The player can play in Survival mode or fight against a computer or a friend in a basic battle.
Source: Wikipedia, "One Piece: Unlimited Adventure", available under the CC-BY-SA License.