Rekka Gyakuryu Ken

Rekka Gyakuryū Ken (烈火逆流拳, Raging Flame, Reverse-Flow Punch): is an anime-exclusive Hokuto Shinken technique which causes the opponent's throat to close, preventing the escape of air. The adversary chokes for a few moments before exploding. This technique is administered in the same manner as the Hokuto Hyakuretsu Ken.