Unpackage contents to wp-content/plugins/ so that the files are in a superslider-menu directory.
Activate the plugin,
Configure plugin under > settings > SuperSlider-menu
Go to Design > Widgets , and drag over the superslider-menu Widget, configure widget.
(optional) move plugin sub folder plugin-data to your wp-content folder,
under > settings > SuperSlider-menu > option group, File Storage - Loading Options
select "Load css from plugin-data folder, see side note. (Recommended)".