Guest 666

Guest 666 Is a Player People in ROBLOX Encounter A Lot. However, By 2019, he's hard to be seen. Which is Actually a Good thing, because Guest 666 isn't like other Guests, or a friendly person. In fact, he's either a demon or a creepy person, or Hacker, According to Creepypastas, he can be summoned, Some games actually do. So it's not wrong.

Tips
To Stay Safe, do NOT summon him. Guest 666 is a Guest not to Mess with, he has the Option to Talk, because he's not really a Guest. he's a Hacker, and hackers hack the System as Guests. The Number, 666 is usually standing for something with Demons. and Hackers, usually try to scare Players on Roblox, or target them when they're afraid. Guest 666, though is usually not moving, but that's the trick. Whatever you do. DO NOT Do what the Player did Below. But Probably that is a fake, but it's unsure.