Super 17 is the cause of the two Android 17's merging the two seventeens was not only a bit different than Dr. Gero thought but also a lot stronger also his cybernetics and his special ability to absorb energy he easily defeated the z fighters and Dr. Gero himself but because of the fight within himself against Android 17and the fight against Goku and Android 18 Super 17 was defeated by Goku Android 17 and 18 had defeated the monster Super 17

Super 17 in Dragon Ball Z Budokai Tenkaichi 3