In Dragon Ball GT, it was proven when Goku, Pan, and Trunks brought an injured boy to the Hospital Planet of the universe. The second time it showed was during his first battle towards Baby Vegeta, he was blasted into Sogorugo Space, where he witnessed a hologram of Chi-Chi that threw a gigantic needle at him.
The Saiyans then assume their Super Saiyan forms, however Super 17 releases a Flash Bomber, weakening them sufficient to revert from Super Saiyan. During Goku’s struggle with Kamioren, android 17 and the other members of the Dragon Team assist Goku by launching an power barrage towards the merged Neo Machine Mutant. He additionally joins in with the rest of the team in attacking Fused Zamasu however is quickly taken down with a single blow. After Hearts re-appears and kills Zamasu, Android 17 makes an attempt to face him together with the others but is taken down a number of occasions with ease. He then buys Goku and Vegeta a while in order that they’ll fuse into Gogeta.
However, he is saved by the use of a Senzu bean, and the Z Fighters leGoku, losing his struggle with Android 19 after the expected coronary heart virus takes over. Goku is proven to endure from extreme trypanophobia, or the worry of medical needles, but this only occurs within the anime. He confirmed his worry for them twice in Dragon Ball Z, and 3 times during Dragon Ball GT. The first time was after his battle with Vegeta, and when he was taken to the hospital. The second time he showed his concern of needles was after the battle with Captain Ginyu on Namek, while he was on his method to recuperate in a rejuvenation tank.
After a few clashes, and two heavy blows from 17, Goku is overwhelmed, and states he’s shocked by 17’s new power. As the struggle raged on, 17 shows some issues about fighting close to the forest, after Goku nearly crashed into it after a swift kick by 17, which sent the Saiyan flinging down, worrying 17. Fortunately, Goku stopped on the last second from hitting the close by bushes, to 17’s slight aid, and Goku decided to take the fight to the skies to keep away from hitting the forest once more. As the trio drives to Goku’s residence, Android 17 suddenly involves a stop. He and Android 18 get out, and Android 17 asks if she felt a change in the atmospheric strain.
As the solar goes down, Goku and 17 discuss and reflect one another’s previous, and so they mention how they never had an opportunity to fight because of Cell absorbing 17. A curious and excited Goku exclaims that he wants to check out Android 17’s present energy, and transforms into a Super Saiyan, wanting “strong associates” to help him within the Tournament of Power, and rushes at him with out warning.
It is then that Goku uses the Super Dragon Fist method to literally punch his means by way of Super 17, with the resulting gap rendering him unable to absorb the following barrage of Kamehamehas, lastly killing him. The Z Fighters are shocked by the transformation till Vegeta assaults him, leading to being knocked back by one punch. Majuub then tries in vain, adopted by Goten and Trunks who try a mixed attack, to no avail. Gohan then tries a Kamehameha, which does completely nothing to the super android, because it was absorbed. Dr. Gero then tells Super 17 to demonstrate his true energy, which leads him to strike down each Z Fighter, again using only a single hit.
Goku, Gohan and Piccolo then spend the following three years coaching for this new threat. However, Future Trunks’ go to one way or the other alters the onset of the virus, so it doesn’t manifest throughout these three years (six months prior to the Androids arrival), and subsequently Goku does not use the medicine. Three years later, two androids, Dr. Gero (as Android 20) and Android 19, seem and attack a metropolis. The Z Fighters confront them, and Yamcha is first to be attacked, having been impaled by Dr. Gero’s hand and having his vitality stolen.
Lastly, Goku confirmed his fear after learning from Pan that the four-star Dragon Ball was coming out of his forehead, worrying that he would wish a shot. As is revealed after the top of the struggle, the real Android 17’s psyche gave the Z Fighters an opportunity to destroy the super android, and both Android 17 and Hell Fighter 17 within the process. By taking full control of the body of Super 17 and powering up as Android 18 was launching pictures of vitality, 17 reveals to Goku that Super 17 cannot simultaneously move while absorbing power, thus leaving him weak to bodily assaults.