In lightsaber combat, a sai cha was the rare instance when a Jedi beheaded his or her opponent. In general, sai cha was reserved for either biological opponents that presented a great danger—any opponent a Jedi could not afford to keep alive—or droids. Only individuals like Simus with great strength in the Force were able to survive it, and in his case it may have been impossible without the particular physiology of the Sith species.
Droids were regarded by most Force-sensitives as neither honorable nor dishonorable, with the exception of a few heroic notables. For example, Obi-Wan Kenobi beheaded General Grievous's MagnaGuards on board the Invisible Hand and during the Battle of Utapau.
In 37 BBY, Qui-Gon Jinn was forced to apply the sai cha against Baroness Omnino of Vena, as she was in possession of a psychic augmenter, a sophisticated device that enabled her to control the minds of others. Jinn was forced to decapitate her to save the lives of Obi-Wan Kenobi and Supreme Chancellor Finis Valorum, and knocking the Baroness unconscious was not an option, as her dangerous mind may have remained active.
Several Jedi were forced to employ sai cha during the Great Jedi Purge. These include Roan Shryne, who performed sai cha upon Commander Appo in the Imperial invasion of Kashyyyk, and Jedi Master Tsui Choi, who applied it against a clone commander in 19 BBY.
Grand Master Luke Skywalker applied sai cha' during his final confrontation with Shimrra Jamaane, Supreme Overlord of the Yuuzhan Vong. Skywalker beheaded Jamaane with the crossed blades of both his and his nephew Anakin's lightsaber, much like how his father beheaded Count Dooku nearly fifty years before.
Beheading of opponents is normally not available in Star Wars computer games, because of censorship and rating issues. However, in Star Wars: Jedi Knight II: Jedi Outcast and Star Wars: Jedi Knight: Jedi Academy, beheadings and general dismemberment are possible using the "Saber Realistic Combat" function which is accessible through a cheat code. In some cases you didn't even need to attack your opponent if they are running right at you, all you need to do is turn in their direction.
|Combat||Duel · Dun Möch · Fast style · Medium style · Strong style · Form "Zero" · Mounted · Niman/Jar'Kai · Sokan · Three rings of defense · Trispzest · Tràkata|
|Forms||I: Shii-Cho · II: Makashi · III: Soresu · IV: Ataru · V: Shien / Djem So · VI: Niman · VII: Juyo / Vaapad|
|Techniques||Cho mai · Cho mok · Cho sun · Dulon · Faalo's cadences · Faalo's Will · Falling Leaf · Flowing Water · Jedi ready · Jung · Jung ma · Kai-kan · Lus-ma · Mou kei · Sai · Sai cha · Sai tok · Sequence · Shiak · Shiim · Shun · Su · Sun djem · Twin Suns · Velocities|
|Variations||Crossguard lightsaber · Curved-hilt lightsaber · Dual-phase lightsaber · Double-bladed lightsaber · Imperial Knight lightsaber · Lightclub · Lightfoil · Lightwhip · Long-handle lightsaber · Lightsaber pike · Protosaber · Shoto / Guard shoto · Training lightsaber / Sith training saber|
|Lightsaber-resistant materials||Armorweave · Cortosis · Darkswords · Force Weapon · Mandalorian iron · Neuranium · Orbalisks · Phrik · Sith alchemy · Ultrachrome|
|Technology||Blade emitter · Crystal · Diatium power cell · Emitter matrix · Focusing lens · Hilt · Inert power insulator · Pommel cap|