And then it's only two minutes of flight. Drone/model is the most likely scenario in my opinion. Great suggestion. Occam's razor.

wow that's really cool. I had only seen the "Iron Man" style jetpack demonstrations that hover a few feet or the jet suits that I thought usually jump from an airplane but I'd never one of these take off from the ground. Must be a really amazing feeling.

The flame seems crazy close to his feet. Is that really safe?