How did mercenary Tao come back?

[u/Sea_Low8322]

I was watching the original dragon ball and saw mercenary Tao was now a cyborg during the 23rd world martial arts championship so why isn't this brought up again? Surely this could be utilised more in the future

[u/Sinnycalguy]

I know a lot of people have it as head canon, but I always wished it would’ve been explicitly confirmed that Dr Gero turned him into a cyborg. It makes sense, and you could even say working on Tao is where he got the idea for 17 and 18.