No, Mushino only requires you to specify an email, nickname and country of residence. You can get started in 30 seconds.
The email address lets you access your account later. We will never sell your email address to third parties, and we will never send you promotional garbage. The email address is encrypted both at rest (using AES-256 encryption) and in transit (using TLS 1.2).
The nickname is your alias in the Mushino Chat and on the Mushino Leaderboard. You can choose to have your nickname removed from the leaderboard. To do so, visit your Account Settings and disable "Leaderboard Nickname"
Mushino asks for your country of residence to ensure that you are not residing in one of the platform's restricted jurisdictions.