Roblox has a built-in object called a ForceField . When a player spawns, a ForceField usually protects them for a few seconds to prevent spawn killing. Some FE GodMode scripts work by creating a ForceField object on the client side and hiding it from the server's replication logic, or by constantly firing the remote event that tells the server "I have a ForceField." This grants the visual bubble of invincibility and the functional immunity to tools and explosions.

If you have spent any time in the underbelly of Roblox gaming communities, Discord servers, or YouTube comment sections, you have seen the bait:

Instead of changing health, the script anchors your character in place.