This is a very interesting mechanic! The way all these moving parts are meshed together into a one-button game makes for a very thoughtful experience.
I wish there were a submit button for the high scores. I think there is a bit of a bug where high scores aren't being submitted until the games after you've entered a name. I'd like to enter my name and submit the score from the run I just completed so I don't throw away the progress from my first game.
The soundtrack is more fire than the lava cubes moving down the screen.