A certified instrument for measuring exactly how well you can guess when to let go.
The Gravity Guess Ball rises for as long as you hold it, and falls the instant you don't. The Bureau of Gravitational Compliance measures the exact moment you let go and certifies the result.
Every attempt receives its own Attempt Number, Peak Altitude reading, Gravitational Defiance Index, Celestial Body Alignment, and Temporal Anomaly Reading — all filed permanently, whether the ball asked to be measured or not.
Peak Altitude is measured at the exact instant of release, since the ball cannot rise any further after that point, no matter how much you'd like it to.
Celestial Body Alignment and Temporal Anomaly Reading are generated independently of your performance, using instruments the Bureau declines to describe.
The Wonder Zone is a narrow band near the top of the track. Entering it is rewarded. Missing it is also recorded, in detail.
No attempt has ever been rejected for landing outside the Wonder Zone. The Bureau simply notes it and certifies the ball anyway.
The Gravity Guess Ball is provided for entertainment purposes only. Gravity was not modified, negotiated with, or meaningfully defied in the production of any certificate.