Hm. I'm really not sure on how to do this, but I'm pretty sure that you can't do it with the service 'Players' because if you are kicked out, it would remove you out of Players.
The only service I know that maybe I could use is NetworkServer, still not sure about it though.
For example, I tried doing
Instance.new('ScreenGui', game.Players.localPlayer.PlayerGui); --obviously doesn't work --also this was in a localscript
Halp?