It's good - it was cool to watch the screen zoom out as the city slowly expands.
You didn't mention it in the submission; but I think this game also fits the theme on a meta level.
Being knocked down to retry the previous level again felt like another loop to me.
I would only change 2 things: 1) more responsive launches - I found there was a lag (probably trying to speed up for a second before launching); 2) wait until the electron has landed back on the loop before loading the new level.