@stalnia : Thanks for taking the time to play it and for writing about your experience!
While developing it, I basically had two way to play/test it : either going as deep as possible in the labyrinth and then trying to find another way out (while keeping a good speed and avoiding to bump into too many things) or just going to the distance toward a specific color until I reached other mazes (though it's not obvious there actually about 450 different mazes plotted in the landscape)