Super 17

After the evil Baby is killed by Goku, peace is thought to have been finally restored. However, in the depths of Hell, two master-minds worked on a horrific plot. Dr. Gero, the evil brilliant scientist who was responsible for all of the androids, and Dr. Myuu, who was responsible for the completion of Baby, teamed up to create the ultimate being. They decided that by merging the normal Android 17, with a machine mutant that they created in Hell, they could create the ultimate android killing machine.
Myuu and Gero then used the machine mutant clone to brainwash 17 into joining them, first using both 17s to sync their energies together to open the gates of Hell, allowing themselves and mostly all other previously destroyed villains to escape. The real 17 then asked his twin sister Android 18 to join, but would wind up killing Krillin when he tried to contradict the mutant clone's voice in 17's head, then fending off 18's attack with relative ease. A short time later, 17 reaches his Hell Fighter counterpart, interrupting the latter's fight with Vegeta, at the same time as the Z Fighters.
===Fusion and defeat===
At this point, the two 17s finally fuse together, and transform into the ultimate killing machine, "Super Android 17". The super android then battles Vegeta, Gohan, Goten, Trunks, and Majuub (while Goku was trapped in hell) and defeats all of them with barely any problems. He also once again kills Dr. Gero, and Myuu reveals that he had programmed Super 17 so that he would have full control, leaving none for Gero.
Goku then returns to Earth with some help from Piccolo and Dende. He saves Vegeta from one of Super 17's energy beams and immediately engages Super 17. Once transformed into a Super Saiyan 4, Goku is able to fight competently against the android. However, Super 17 absorbs all of the energy attacks that Goku unleashes on him, and by the time Goku realizes this, Super 17 has absorbed enough energy to grow stronger and overwhelm the Saiyan. Android 18 comes to Goku's aid and distracts Super 17 long enough for Goku to find his weak spot.
Eventually, Goku notices that while 17 is in his absorption pose, he creates a shield around him to prevent 18's blasts from reaching him; all the while laughing hysterically. It is at that point that Goku realizes Super 17's sole true weakness: when Super 17 absorbs energy, he is actually vulnerable to attack. Goku charges 17 with the Dragon Fist, blowing a hole straight through him. He then shoots a single powerful Kamehameha, that finally kills the super android once and for all. It is later explained that Android 17 had been influencing Super 17 to reveal this weakness and leave himself vulnerable to attack.
Category:Evil
Category:Androids
Category:Characters who can Fly
Category:Characters
Category:Fusions
Category:Video Game Characters
Category:Dragon Ball GT Characters
Category:Villains
Category:Characters who absorb energy
Category:Dragon Ball GT