The Kodak Disc 2000 was the first camera to use a disc shaped film.
It was a bit of a novelty at first but is now obsolete. Although
if you look hard on the internet you may find enthusiast web sites
suggesting places you can still get the disc films developed, if
you really want to.
They were powered by a 9-volt battery and the flash was manually
selectable but the films were just too small and clumsy to really
catch on and Kodak stopped producing cameras in this format in 1990.