Random Slideshow – Not Flash?

Hi, everyone–
I used NextGEN Basic Slideshow to create this page for our school district newspaper:

https://www.schoollifetroy.com/we-are-troy

Frustratingly, it doesn’t work on mobile devices which don’t use Flash. Is there any way that we can have a similar slideshow — with the slides in random order — without using Flash?

Many thanks for your help,
–Ed