you have to pass milestonen 1. Complete it within (60 Seconds) with proper form to pass. If you can't pass it yet, spend more time on the previous routines and get back here in a week or two.

 This is your final test of milestone 2. If you manage to complete the challenge within 120 seconds, you earn the right to continue onto the Boss level! If not, continue with the previous routines until you've got it! :)