Buy in: Tabata-style: air squats, jumping jacks,skipping in place, roger rabbit, repeat. Mobilize your shoulders and get some reps of each movement and/or devise a substitution.
In 20 minutes complete as many rounds as possible of:
Row 10 calories
5 Ring Dips
1 legless Rope Climb
5 Strict Handstand Push ups (sub strict press)