How to uninstall or remove armagetronad software package from Ubuntu 16.04 LTS (Xenial Xerus)

You can uninstall or removes an installed armagetronad package itself from Ubuntu 16.04 LTS (Xenial Xerus) through the terminal,

$ sudo apt-get remove armagetronad

Uninstall armagetronad including dependent package

If you would like to remove armagetronad and it's dependent packages which are no longer needed from Ubuntu,

$ sudo apt-get remove --auto-remove armagetronad

Use Purging armagetronad

If you use with purge options to armagetronad package all the configuration and dependent packages will be removed.

$ sudo apt-get purge armagetronad

If you use purge options along with auto remove, will be removed everything regarding the package, It's really useful when you want to reinstall again.

$ sudo apt-get purge --auto-remove armagetronad