Android 13

Android 13 (人造人間１３号, Jinzōningen Jū San) is dr gero's thirteenth android creation. He is designed to continue Gero's vendetta against goku who overthrew the red ribbon army as a child. He makes his debut in the film [http://dragonball.wikia.com/wiki/Dragon_Ball_Z:_Super_Android_13! Dragon Ball Z: Super Android ] 13!

In the Dragon Ball manga and the Androids Saga of Dragon Ball Z, Android 18 asserts that Dr. Gero destroyed the first fifteen androids he designed. However, this statement might not be concordant with both the mainstream series (as Android 8 makes cameo appearances throughout both Z and Dragon Ball GT) and Super Android 13!, which features Androids 13, 14 and 15 as its lead villains. The movie indicates that Dr. Gero is murdered by Androids 17 and 18 prior to personally completing 13 through 15 (leaving an underground supercomputer to finish the models posthumously). Even though Android 13, 14, and 15 are not featured in the manga, the "Androids A-B-C's" section mentions that Androids 13, 14, and 15 were very close to the Android concept In his Super form, 13's appearance becomes almost unrecognizable from his standard form, with the exception of his widow's peak hairline and few pieces of apparel he dons. His skin pigment turns blue and grey, the pupils and irises in his eyes apparently disappear and the whites turn yellow, his hair turns orange and is raised in a similar manner to Vegeta's, and his muscle mass increases dramatically. Coupled with his new appearance, 13's power skyrockets ferociously. Despite being attacked by Piccolo, Goku, Vegeta and Future Trunks, the latter three in their Super Saiyan transformations, Android 13 is absolutely unphased. His body also becomes so tough that Trunks' sword shatters upon striking 13's arm. It is only when Goku forms a Spirit Bomb and absorbs it as a Super Saiyan that any damage is done to 13 at all (curiously, it is also this damage that results in Android 13's death).