Based on community findings, "Egg" scripts in this context often refer to two distinct things:

: Historically, scripts like the "Malicious Egg" would duplicate themselves into every part of a game, causing massive lag and triggering disruptive events every few minutes. Technical Risk Analysis

Using "free" or "leaked" ServerSide scripts poses extreme risks to both game developers and players:

The following report analyzes "ServerSide" (SS) scripts, specifically those involving "leaked" or "free" malicious content like the "Egg" script, within the Roblox ecosystem.

ServerSide scripts are tools or backdoors that allow users to execute code directly on a Roblox game's server. While typical "client-side" exploits only affect what the player sees, a ServerSide script can manipulate the entire game world for all players.