Blue Shell was great in Mario Kart 64, but it’s overpowered in the newer games. The ‘64 ones couldn’t fly, and would not explode. It would go straight to the target by following their path, while hitting anyone in its way. You could avoid getting hit by going on ramps or tricking it, like you do the red ones. Now, the only way to avoid getting hit is to go to second before the person uses it… and that is difficult to say the least. Especially when you have competent opponents who know to stay in second during this.