Thank you for your thorough review! As we said before, level 8 and 9 have been unfortunately swapped. Level 9 would have been better to introduce this mechanic. Your idea about the first level is good: it would teach the player how to drift in a safe space. As for level 10, it is one of our favorite level. I personally really like the fact that multiple paths are possible to get to the finish line. This one was designed by Devskil, so, shout-out to him!
Anyway, thank you again for playing!