In 1984, the Kenner toy company was granted the rights to produce DC Comics character figures, and soon after, the Super Powers Collection of action figures hit toy shelves. Each figure, as the name implies, had a secret super power that would trigger when the figure's arms or legs were squeezed. Kenner produced 3 different Super Powers lines, ending production before such rumored Batman character figures as Catwoman and Man-Bat were produced.
During its time on the market, however, the Super Powers Collection managed to release the first-ever 5" action figures of Batman, Robin, The Joker, The Penguin, and Mr. Freeze. Toy shelves also reserved space for an accurately styled Batmobile and a Batcopter.
I had pretty much everything in the toy line. I only wish I still had all these. I'm sure we sold them in a garage sale or something. A few years ago I found Mr. Freeze in a comic book store unopened. I bought it for 10 bucks. Besides the Batman ones I also had Superman and others.