What is it?
I am going to guess that it is a “Tetra Topper” prototype. I am not positive on how it will work, but I am going to venture a guess that you use the human player to load it with a tetra pointing downwards in the square ‘arm’. Then the arm swings over the goal to score the tetra.
Judging by the thickness of things, I am guessing a main arm pivot.
It also looks like you are clamping somthing between the bolts.
I like those pink bushings. They look like Urethane swaybar link bushings from a truck.
if you stck some pots in there, you could make it part of your contols for what ever that is on the robot. But its a pretty good teaser!!!