Code Zero is a strength workout that will let you feel muscles in places you weren't aware you had muscles to begin with. It's designed to be done at a slow, deliberate pace that pays attention to form so the punches are performed with full body rotation behind each punch and a micro-second locking of the elbow as the punch is centered each time, the push ups are deep and slow and the side kicks are executed slowly with a split-second hold of the position before the leg is retracted. The result is a workout that will not push you in terms of aerobic capacity or endurance but will help you develop stability, core strength and strong muscles.
Extra Credit: 30 seconds rest between sets.