Only sonic can survive from connect hits from saitama. He must be final boss for saitama if he become demon

One Punch Man - Chapter 194

Demon

@Demon yeah maybe the monster didnt have effect by now.  Maybe it has a delay effect.

Yeah maybe the monster cell he eat didnt have effect by now. Maybe it has a delay effect.

@Demon No not really. He always uses mimum power when striking humans. Just like he does with Genos

@Demon In truth, I believe the monster cell was supposed to be eaten raw but Sonic cooked it.