Most of Dragon Ball's strongest characters are of alien origin, but there are a select few fighters capable of keeping up ...

What-if stories and Dragon Ball have gone hand in hand since Dragon ... By Age 770, he would activate Android 17 and 18 – the two original androids who terrorized Trunk's future.

Android 16, stronger than both 17 and 18 ... the rest of the Z fighters. Goku's insatiable desire to fight has led him to challenge nearly every major foe in the Dragon Ball series.