'Real Virtual Guitar + Record Karaoke' is Music app.

A realistic guitar app with sound effects.
Choose from 8 different guitar styles.
Strum the guitar like an actual one.
Realistic strum effect

Real Rolling Ball 3D - Zigzag is Skilling game.

This is a "zigzag" game with one button press.

Try to score as many points as possible on your way.

Be careful not to go out of your space or fall.