Loops are one of the new obstacles in Runner 2. The game only mentions "Mash Space" (jump), and I've noticed that, while I've yet to fail a loop, I've gotten mixed point values from them.
Some of this I can attribute to entering the loop with a different bonus multiplier (i.e. Mega. vs. Extra), but the other part of the points seems random.
Is there some trick I'm not getting?