It's so cool that this exists. Amazing job!
It seems like it's a new course every time, but I wish it was possible to select stage manually for practice and fun: I am stubborn and get annoyed when I reach the pick-up limit and would have loved to be able to play a stage over and over until I got a good score. The randomized courses also make it a bit meaningless to compare scores with other players.
Best score so far is -14, but it feels like a meaningless metric due to the random courses. Also, one of the stages has a bug where the area below the mountain is set to "rough" and doesn't blow up Tewi.