From Dragon Ball Encyclopedia
Tenshinhan puts his hands together by the tips of his fingers and thumbs and zooms in on his target through the triangle in between his hands. Once he gathers enough energy, he shouts, "Tri-Beam, ha!" and the Kikoho multiple times at his opponent while repeating "ha!" depending on how much he repeats the attack. The major drawback of this technique, as with the original, is that it drains Tenshinhan's life force, greatly harming and being able to kill him with repeated use.
Dragon Ball Z
Tenshinhan used this attack to distract Cell in his Semi-Perfect form so that Artificial Human No. 18 could escape with an injured Artificial Human No. 16. Although Semi-Perfect Cell was significantly more powerful than Tenshinhan and the Shin-Kikoho did not inflict any real damage, Semi-Perfect Cell was unable to escape the repeated attacks and kept getting blasted into the ground. Overuse of the the Shin-Kikoho took a toll on Tenshinhan, however, and he eventually collapsed from exhaustion. Before Semi-Perfect Cell could kill Tenshinhan, Son Goku appeared using Instant Transmission and took the unconscious Tenshinhan and Piccolo back to the Heavenly Realm to recover.
It is named Neo Ki Blast Cannon in the Budokai video game series.
It is named Neo Tri-Beam in the Budokai Tenkaichi video game series and is Tenshinhan's Ultimate Blast. In Dragon Ball Z: Budokai Tenkaichi, it appeared as a larger version of the Tri-Beam in energy wave form, but this was later fixed in Dragon Ball Z: Budokai Tenkaichi 2 and Dragon Ball Z: Budokai Tenkaichi 3.
It later appeared in Dragon Ball: Raging Blast.