@andrewortwein the four lenses create movement in the picture. Back in the day, you ‘had to’ send back the spool to Nishika, and they would develop the film and give you a special photo with this movement. Today, with Photoshop, you can recreate the same effect.

https://shootitwithfilm.com/3d-film-photography-featuring-the-nishika-n8000/