No, but it does explain their purpose and why they function the way they do. A temporary powerup, but one that's commonly found puts a different kind of limit on the Super abilities... one from before the Super Saiyan trope and the 50 rings system was developed. In fact, this solves a tiny bit of the mystery of how 2 different but diverging super systems would even exist in this time period. Also, here's 2 of the early Screencaps. This does indeed hint to more public builds existing: So I guess the chances of us finding more builds with new content and visuals we've never seen before isn't 0... including a small chance of finding R2 assets.