Except when it glitches and gets stuck on a loop and won't launch."Keep your hands down and…" "Keep your hands down and…"
Sigh.
When it repeats "hands down" over and over without launching, that's triggered manually by the launch operator because somebody on the train has their hands up. For safety reasons, they will not launch the train while anyone has their hands up.
That's because if you get everyone to put their hands up on Dragster it will cause a rollback.