DB Chapter 170
From Dragon Ball Encyclopedia, the ''Dragon Ball'' wiki
"The Assassin's Struggle" (殺し屋桃白白のあがき, Koroshiya Tao Pai-pai no Agaki; Literally meaning "The Hitman Tao Pai-pai's Struggle") is chapter 170 of the Dragon Ball manga.
Tao Pai-pai is annoyed about Tenshinhan suddenly appearing behind him, and about Tenshinhan saying he's too strong for him. Tenshinhan says it's not too hard not to tell, and Tao Pai-pai angrily comes at him. But, Tenshinhan easily dodges all of his strikes, then his kicks, and finally catches Tao Pai-pai's fist. Tenshinhan tells him he doesn't want to make Tao Pai-pai lose like this, since he and Tsuru-Sen'nin taught him, and again asks him to please leave.
Tao Pai-pai jerks away, leaving his mechanical fist in Tenshinhan's hand. A long knife pops out of the socket where his hand was, and Tao Pai-pai slashes Tenshinhan across the chest with it. "F-foul play!! That's foul play!! Use of weapons is firmly prohibited!! This contest's win belongs to Tenshinhan!!" Tao Pai-pai doesn't care about that anymore; he just wants to kill Tenshinhan. Tsuru-Sen'nin cheers him on, telling him to kill everyone else affiliated with the Kame School as well.
Tenshinhan removes his slashed shirt, and Tao Pai-pai pops off his other hand. Yamcha and Kuririn volunteer to help, but Tenshinhan says he wants to do this himself. Tao Pai-pai's second hand is a gun which can fire a Super Dodonpa. He tells Tenshinhan to prepare to go to Hell. Tenshinhan stands unmoving, though, and Tao Pai-pai targets Tenshinhan with his cyborg radar vision.
Tao Pai-pai then fires the tremendous Super Dodonpa at Tenshinhan, but Tenshinhan just screams, and the blast is ineffective. Tao Pai-pai can't believe he's cancelled out the Super Dodonpa with just a kiai, and then Tenshinhan runs over and punches Tao Pai-pai in the gut, knocking him out. Tenshinhan then picks him up and takes him over to Tsuru-Sen'nin, saying he probably won't wake up for days. Then he asks them to please just leave, and so Tsuru-Sen'nin flies off with Tao Pai-pai draped over his shoulders. And so, the second match is called to begin, and Goku wants to know why this girl is mad at him once they get in the ring.