Thanks mate,
Frustration is what I was aiming for, he he, hence you don't have 3 fixed lanes, and the cutout in the walls are not always the same for each shape, so sometimes you have to adjust the position even if you are in the left, middle or right side of the track.
My aim was to go crazy with effects, but then MacOS build vs WebGL build cost me 2 evenings of work. Had to change UI, resolution, etc.