Several injured in attack

The video tutorial involves a task where the speaker attempts a double jump. Initially, the speaker sets up the task and then proceeds to execute it, noting that someone hasn't landed yet, indicating an observation of the task's outcome.

How does the phrase 'I do it on this one' relate to gameplay?

In what context might 'No' be used in a gaming scenario?

What does the phrase 'Double jump' imply in gaming?

What could be the significance of timing in the phrases mentioned?

What might the speaker mean by 'someone hasn't landed yet'?