I think I've played it once, but I have not played recently, so I barely remember it. I should play the game sometime again. Although I do hate those levels that are not GENUINELY hard, which is why I hated Mario Kart Wii (though it was a little different from unpredictability, it was more of from Nintendo giving CPU opponents stronger power-ups and making them all target the human player at the same time just because either they were too lazy to do better, or that's the best artificial "intelligence" they could do).