Nice concept! I feel like it kind of lacks the modifier implementation though.

Also, I think I broke the game every time I played so far. At some point, I started infinitely accelerating without even holding "up".

I like the interaction of the environment either helping or killing the record.

This might just be the complicated interpretation of “Time kills you” wherein as time progresses either your progress is killed and you have to start again, or time spent accelerating will help you with your progress.