Over 10M users downloaded and set up the game and the most recent release was on May 22, 2019. Advertisements are a part of this application. Samsung and Sony users recommend the app.
A free .apk installation package of Music Hero 2.1 can be downloaded from Droid Informer and you can have a look at users' reviews on this site. Prepare 7 MB of free space on your device for this app installer and take into account that it works fine on Android 2.0 and above.
As users see it, the app features such a plus as a simple interface.