MidMux Lv 1
I watch the score in the tutorial to see if my solution is getting better.
Often I can't tell if I'm increasing or decreasing, because there's no indicator - if I get a particularly high score, I must memorize it and then compare my new effort against my memory. Often my memory is incorrect after several trials.
Suggestion: add an indication line within the score box (in addition to the moving blue fill) that is pushed to the right as the score increases, and then stays at the highest spot. Like a temperature thermometer that records high for the day. This line should be in a different color, such as a different shade of blue or e.g. green.