In October 2025, Unity Technologies announced that it had found a security vulnerability for Android games and applications built with Unity. In response, we have released an updated Android version of "Hello, Mario!"
We recommend that all Android Ver.1.0.0 users update the app to the latest version to prevent any security risks.
We apologise for any inconvenience this may cause and hope you continue to safely enjoy "Hello, Mario!"
*This issue has been fixed for "Hello, Yoshi!" as of Ver.1.0.0.