How can I create a loading gui that ONLY loads when player enters?

**ANYTHING ** is possible with code!

--Local script inside of StarterGui
--Assuming there's a boolvalue named "Reset" inside of StarterGui

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()

mouse.KeyDown:connect(function(key)
if key:byte() == 8 and player.Character.Humanoid.Health > 0 then -- Kills the character when backspace is pressed
script.Parent.Reset.Value = true
player.Character.Humanoid.Health = 0
end
end)

--Script inside of ServerScriptService, or anywhere, really.
--Assuming GUI is named GUI and inside of ServerStorage

local bork = {}

game.Players.PlayerAdded:connect(function(player)
bork[player.Name] = true
bork[player.Name.."ded"] = false

    player.CharacterAdded:connect(function(character)
    if bork[player.Name] and not bork[player.Name.."ded"]  then
    local clone = game.ServerStorage.StillAlive:clone()
    clone.Parent = player.PlayerGui
    end

        character.Humanoid.Died:connect(function()
        bork[player.Name] = player.PlayerGui.Reset.Value
        if not bork[player.Name] then bork[player.Name.."ded"]  = true
        end
        end)
    end)
end)