I have heard that cathe does a but blasters section in Mega Step Blast...what moves does she do to blast your but??? I wish I could get that portion of the video
...is the Butt Blaster section. Also, in Step Max there is a section called "plyo-power," which is similar. Body Max has something like that, too, the interval part when Cathe uses weights and the barbell to work legs.
She does a LOT of lunges and other moves which I can mostly feel in my hamstrings.