海軍王クイズアカデミー for OnePiece ワンピース is a quiz app related to a popular pirate adventure manga. Despite its cheesy name, the app boasts impressive features for a simple quiz app.

By correctly answering multiple-choice or input-based questions, players can earn points and "Berries." They can register on GameCenter and aim for the top spot on the leaderboard.

As a recruit, players can perform various tasks and earn points and accuracy rates to get promoted. Can you reach the rank of "Admiral" and conquer the heights?

Features:

• Massive collection of questions, currently atversion 1.0.0), with more updates planned.
• Rank system with 19 levels, from recruit to Admiral. Promotion is based on correct points and accuracy rates, with question difficulty increasing with each rank.
• Performance analysis tool that provides insights into correct answers and rates by question level and category, helping players identify their weak areas.
• GameCenter integration to compete for the top rank based on points and Berries earned.

Please note that the questions are limited to the original manga series, from Chapter 0 to Chapter 597 (covering the Straw Hat Pirates' training). Questions from the anime or movies are not included. The app references the present as "2 years ago" as the benchmark.

The developer acknowledges the possibility of data inaccuracies and has discreetly included a few questions that anyone can answer correctly. These are not bugs but intentional service questions. Any data inaccuracies will be addressed in future updates.

Embark on this quiz adventure and test your knowledge of the One Piece world. Will you conquer the heights and become the "Admiral"?