Make the simulation legible
Tumble Master describes flips and backflips performed in a parkour simulation. Its controls say to click and hold the left mouse button for action. That establishes a sustained input, but not the exact stages of a jump or a landing rule. An informative first attempt watches what happens before, during, and after a hold instead of treating every failed trick as the same timing mistake.
Vary one duration deliberately
Once the game explains its sequence, compare two holds that differ only in duration. Observe whether the character's rotation or another visible state changes. The comparison should answer a concrete question about this implementation rather than assume a physics model from the word backflip. If releasing has a distinct effect, describe that effect from the interface before trying to use it more precisely.
Review the whole movement
A satisfying-looking rotation does not by itself establish that the game considers the action successful. Look for the actual completion feedback, then work backward to identify which stage deserves practice. Perhaps the uncertainty concerns starting the move, sustaining it, or finishing it; those possibilities need observation. Keep the exercise within the fictional simulation, where dramatic height is part of the presentation rather than advice for a physical stunt.