Responses
From what I understand, Bighead was born too early. It probably wasn't his time to come into the world. Though, thanks to Rourou's help, Bighead successful made it. Even though it should have been impossible, since Bighead wasn't fated to be born yet.
However, there is still the possibility he wasn't supposed to born at all. That he was supposed to actually not make it or never be developed at all. ┗( T﹏T )┛
Wait, so big head was really not supposed to be born? Damn that's sad.