What is the purpose and meaning of those white animals what you can collect? I have noticed that often they slow your speed but then sometimes increase it. But it feels like if you collect them you get punished. I mean for example if you collect them and speed is slow at the start there are so much more trees that even start is difficult. Thats ok then but autumn is super difficult at least for me. I die almost every time between 50-56. And if your speed is slow autumn is impossible and there is chance tha...

Situation, when you are forced to run only on left or right half of the world... Is it planned and triggered somehow? Or it's just bug/glitch?