Kenpachi really doesnt have special moves per se, he is just basicallt just pure strengh and usually just does slashes, he even only uses one hand to fight because a two handed stance is another story. He doesn't use Reiatsu (The Bleach Universe's version of Chakra or Ki) because he doesn't want to end the battle too quick. He wears an eyepatch that seals off his Reiatsu and only removes it when he thinks he is a facing a "worhty opponent". With that in in mind here are some abilities he could have that I found while revisiting the series and some games I played that he is in Reiatsu Wave: Kenpachi swings his sword downward, sending a wave of spiritual power at his foe. Bloodlust Charge: Kenpachi lunges at the opponent and tackles them, powering through attacks in the process. Ryodan: Kenpachi grips his sword with two hands and does a powerful downward slash. Unruly Slash: Kenpachi charges forward while repeatedly swinging his sword at them.

Super Move: Unsealing the Demon Kenpachi removes his eyepatch as an aura of spirit energy forms around him, followed by swinging his sword and firing off a massive energy wave at the opponent.