Here’s a pretty fun article about that clear plastic ball with neon lights in it that I’m sure many of us didn’t even notice was in a lot of Super Sentai series. It solves no mysteries of the world, but it a fun think to maybe keep an eye out for in perhaps other toku or other items like it that make reappearances. Article comes courtesy of forum member, FortMax.

Name: That One Ball
Natural Habitat: Main room of villain lairs, mecha cockpits, occasionally villain laboratories.
Energy Source: power outlet, ~110V

That One Ball has a long history working with Toei. His first known role was in 1991’s Jetman, as a prominent piece of the Vyram’s base, mounted under their funky table.

His role as part of an antagonist’s main set continued with 1992’s Zyuranger, where he landed a part as a decoration of Bandora’s telescope.

To avoid being typecast, his next role was as part of a heroic set: the main mecha cockpit in 1993’s Dairanger.

The next year, he had a smaller role in a rarely used lab set in 1994’s Kakuranger.

In 1995, he saw more work as part of King Pyramider’s cockpit.
After another lean year, he landed a role in the final episodes of 1997’s Megaranger, once again part of the villain’s main base after it transformed into a giant robot.

He returned to his roots two years later, once again having a regular job as part of the Demon’s base in 1999’s GoGoV.

His last known appearance to date is a cameo in episode three of 2002’s Hurricanger in a closet full of junk int the villain’s base. Sadly, That One Ball likely met a similar fate not long afterwards.