"Desperation Move" (両者最後の戦術！！ Ryōsha Saigo no Senjutsu!!, lit. "The Pair's Final Tactics!!") is the one hundred thirty-third chapter of the Dragon Ball manga.
Tenshinhan keeps shouting down at Goku to avoid this, but Goku is unmoving. Master Roshi continues objecting, while Chiaotzu pleads to Ten-san not to die. Tenshinhan looks down at Goku and says "Here goes!!", and Goku stands ready to take it. Tenshinhan folds his hands in front of himself with the index fingers up, and starts powering up. Then, he pulls his hands apart, and they start charging up. Krillin asks about his hands glowing, so Kame-Sen’nin explains that Tenshinhan is focusing all the ki in his body.
Tenshinhan puts his hands together in a triangle form. "The target… is the ring!!", Tenshinhan thinks he will completely use up all of his ki and deplete his strength, and then "Tri-Beam!!!!" There is a huge flash and explosion. Tenshinhan pants as he looks down at the ring, just as Kuririn and Kame-Sen’nin notice the damage. The announcer is shocked as well. "T-the ring is… gone!!!! W-what in the world is this, h-how… T-the ring was just here a moment before. I-it's completely disintegrated…!!!!" There is just a huge hole in the ground where the ring was. Where Goku was…
Kame-Sen’nin is impressed with the Kikōhō, but Kuririn is more worried about Goku having been disintegrated as well. Kame-Sen’nin doubts he is dead, and then Tenshinhan notices something and flies up. It is Goku! Tenshinhan is impressed with Goku for having jumped all the way up here just in the nick of time. Goku compliments his technique, saying he would have died if he had not gotten out of the way. The World Tournament Announcer looks up at the two of them with some binoculars, continuing to call the match.
Gravity is getting the better of Goku, and with there being no more ring, or earth where the ring was, simply touching the ground would constitute a ring-out now. Therefore, the first one to fall loses. Tenshinhan talks about how he can freely fly with Flight, so the outcome is pretty obvious. But Goku says he is going to try one last attack with all of his remaining strength. Tenshinhan thinks Goku is wasting his time, but Goku says Tenshinhan should be worn out from his attack. Goku starts up a Kamehameha, and Tenshinhan just laughs about this. But then Goku does an about face, firing off a pretty big Kamehameha, so that it propels him toward a worried Tenshinhan.