Multiple choice Why the half of Zamasu is different? Because that side is more powerfull Because that side isn't imortal Because that side is weak Because he born like that. Duh Reveal answer Fill a bubble to check yourself B Correct answer Explanation Fused Zamasu had two distinct halves because Goku Black was mortal while Zamasu was immortal. This created an unstable fusion where one half retained immortality while the other did not. The mortal half became vulnerable and decayed.