Install csmash-demosong by entering the following commands in the terminal:
sudo apt update sudo apt install csmash-demosong
Description:
Demo song for CannonSmash
This is the demo song for CannonSmash. If csmash detects the presence of this song during its startup, it will present you a demonstration of the game with a nice musical background. . Composed by Hideaki Tanabe
Homepage: http://cannonsmash.sourceforge.net/
Version: 1.4+nmu1
Section: universe/games