American Comics: Destroyer from the Start, Leveling Up by Taking Hits

Having read the first few chapters, I am not familiar with Doomsday, but from reading other novels, I know that Doomsday is definitely more than what the protagonist portrays. The protagonist's injury only resulted in localized enhancements 😅. He was shot in the head, but the rest of his body (hands, torso, feet, testicles) remained unchanged, just like an ordinary person??? Logically, his entire body should be able to withstand gunshot wounds 🤦 Is this... Right?

However, Doomsday was genetically modified by Kryptonians, so it didn't need to start from scratch and could absorb solar radiation. Moreover, it's not a localized enhancement, but a comprehensive enhancement; it's just that certain areas are strengthened more significantly.