Wasteland: My items are unlimitedly upgraded

Description

Type 05 revolver, nicknamed "Good Gun", can't kill a dog with six shots.
"Inferior revolver lv0, damage 1, effective range of 10 meters"
Consume 1 health point and can be upgraded to:
"Ordinary revolver lv1, damage 2, effective range of 20 meters"
"Activate special attributes: bullet recovery 1/1h"
Wake up from the tide of escape and be in the strange and crazy wasteland of the end of the world...
Lin Feng tightly grasped the only weapon in his hand, used items to upgrade the system, and upgraded the Kind Spike step by step into the God-killing Gun without limits:
Pistol → Grenade gun → Pulse gun…→ God-killing gun