Is Android 21 Gero’s wife?
Fandom. Android 21 is married!?! It was confirmed that Android 21 is married to Dr.Gero and Android 16 is their son.
Why does krillin have 6 dots on his head?
He does not possess a visible nose, and has six spots of moxibustion burns on his forehead, a reference to the practice of Shaolin monks.
Will Android 21 ever be canon?
So to answer the question at hand, Android 21 is unarguably canon, but only exists within the continuity of whichever media she appears in (just FighterZ, Dokkan Battle, Heroes and XV2 so far).
Can you buy Android 21 with Zeni?
Yes, 21 can be unlocked by completing Story. While the SS Blues of Goku/Vegeta can be unlocked within a certain difficulty ladder and earning a certain rank in Arcade, or buying them with the in-game Zenny. (Forgot the specific amounts at the moment.)