how to make a prefab that self destructs when neared?

I’ve only just started using unity recently and am wondering if there is a way to make a new robot in that FPS microgame I chose. I have copied files and rigs from that hovering bot, and have edited it to change what it looks like, but at the moment its still just shooting like a hoverbot. does anyone know how I can edit the prefab so it self destructs, when neared, dealing damage.

You need to give the prefab some smarts some how. On its own, a prefab is basically just a collection of game objects and their configurations. One thing you can do is add a script that calculates the distance to the player, and then triggers the destruction when it gets too close.

This may help you understand how to use Unity’s physics system for that kind of detection as well: 3D Physics - Unity Learn