Mashing Exam is a free Android game developed by Shunsuke Osawa that challenges players to test their button mashing skills. The game offers three modes: 10-second mash, concentration mash, and 60-second mash, where players can measure their mashing power.

In the 10-second and 60-second modes, players have to mash a large button as fast as they can. In contrast, the concentration mash mode requires players to concentrate on hitting smaller buttons accurately. The game also provides a global ranking feature, allowing players to compete with others worldwide.

Overall, Mashing Exam is a fun and engaging game that provides a unique challenge for players who want to improve their button mashing skills. The game's simple design and intuitive gameplay make it accessible to players of all ages and skill levels.