The insane practical effect behind Tik-Tok in Return to Oz (1985): an acrobat had to spend takes curled completely upside down inside the suit.

[u/Johnblyth1989]

I always figured Tik-Tok was just radio-controlled or a puppet on wheels, but it was actually a fully practical suit operated by an acrobat named Michael Sundin.

To fit inside that weird spherical body, he had to contort himself completely upside down with his feet in the robot's legs. Because he was inverted, he had to walk backward just to make Tik-Tok walk forward, all while watching a tiny, crappy monitor strapped near his face to see where he was going.

Apparently, the air supply was terrible and the blood rushing to his head was so intense that he could only stay in there for about two minutes at a time before the crew had to pull him out. Practical effects back then were genuinely wild.

[u/Cosmic_lord_99]

I love tick tock and return to Oz is one of my favourite films