Bubbler's Mother Unlock - SPB Attack on Chemical Facility Clear

So! SPB attack! Mirrored tracks, a SPB chasing you, no ring pickups, and a roullete that gets faster the more you use it...
I have heard this challenge is pretty difficult to complete! I thought I'd try it out.
Because I was trying to treat this like a time attack, I was repeatedly getting my ass kicked. Turns out its actually not too terrible if you just pace yourself and try to avoid using rings. I may actually do a proper time attack of this at a later date though.