So after picking this up, I have a few questions:
How do I steer in boost mode? Hitting D and F seems to do nothing and I hit something which causes me to lose some of my health.
In the brutal defense, I noticed that occasionally I hear something panning from left to right or right to left. Boosting makes me go clear of it, but I still hit something, I am assuming that is a barrier, and thus fail the bonus objective.
What is the difference between Hyper rift and boosting? I get that one of them removes the notes from the track, but why would I choose one over the other?