4 Part Lesson — Marcelo swivels around his opponent's Half Guard until an opportunity to attack presents itself: [I] Look for the Reverse Underhook off the Back-Step to pass into North/South or land on his neck for the Guillotine Choke. [II] If you cannot find the Reverse Underhook or Guillotine, pummel for the opposite Underhook and step over his leg, returning back to the normal Half Guard side with the Knee Slide Pass. [III] If he hides the Underhook after you step over, swing your leg across his face and land on the Reverse Side with the Leg Over Pass. [IV] If you cannot pummel an Underhook for the Leg Over Pass, spin back to the Back-Step Pass or Do-si-do back again to the Knee Slide Pass.