Are you curious about why you sometimes say or do mean things? Do you wonder if you have an unconscious or conscious maliciousness? Find out with the "いじわる診断" (Mean Streak Test). This app allows you to measure your level of meanness through a series of 15 random questions and psychological tests. Whether you want to try it for yourself, have your friends take it, or simply use it as a conversation starter, this app is for you!

With simple questions and psychological tests, you can determine if you have a mean streak. Plus, this app is completely free to enjoy.

For those who enjoy psychological tests, horoscopes, and other quizzes, this app is highly recommended. It also offers integration with "Testii*みんなの診断" (Testii*Everyone's Diagnosis), a website where users can create and share their own quizzes. After playing with the app, why not check out the website?

Please note that this app is provided for free in exchange for displaying advertisements. Thank you for your understanding and continued support.