local screenGui = script.Parent
local bgFr = gui:WaitForChild("BackgroundFrame")
local fxFr = gui:WaitForChild("EffectFrame")
local TS = game:GetService("TweenService")

function Tween(obj,prop,info) -- object to animate, properties to change, tween info.
  	info = info or TweenInfo.new(
		1,
		Enum.EasingStyle.Linear,
		Enum.EasingDirection.Out,
		-1,
		true,
		0
	)
	TS:Create(obj,info,prop):Play()
end

while true do
	fxFr.Position = UDim2.new(0.75,0,0.75,0) -- set position to bottom right
	Tween( fxFr,  { Position = UDim2.new(0.25, 0, 0.25, 0) } ) -- Tween to top left
	wait(1)
end