View difference between Paste ID: DEL1fYSX and v3Yqrgvr

 --https://github.com/Mokiros/roblox-FE-compatibility
 if game:GetService("RunService"):IsClient() then error("Script must be server-side in order to work; use h/ and not hl/") end
 local Player,game,owner = owner,game
 local RealPlayer = Player
 do
 	print("FE Compatibility code V2 by Mokiros")
 	local RealPlayer = RealPlayer
 	script.Parent = RealPlayer.Character
 
 	--Fake event to make stuff like Mouse.KeyDown work
 	local Disconnect_Function = function(this)
 		this[1].Functions[this[2]] = nil
 	end
 	local Disconnect_Metatable = {__index={disconnect=Disconnect_Function,Disconnect=Disconnect_Function}}
 	local FakeEvent_Metatable = {__index={
 		Connect = function(this,f)
 			local i = tostring(math.random(0,10000))
 			while this.Functions[i] do
 				i = tostring(math.random(0,10000))
 			end
 			this.Functions[i] = f
 			return setmetatable({this,i},Disconnect_Metatable)
 		end
 	}}
 	FakeEvent_Metatable.__index.connect = FakeEvent_Metatable.__index.Connect
 	local function fakeEvent()
 		return setmetatable({Functions={}},FakeEvent_Metatable)
 	end
 
 	--Creating fake input objects with fake variables
     local FakeMouse = {Hit=CFrame.new(),KeyUp=fakeEvent(),KeyDown=fakeEvent(),Button1Up=fakeEvent(),Button1Down=fakeEvent(),Button2Up=fakeEvent(),Button2Down=fakeEvent()}
     FakeMouse.keyUp = FakeMouse.KeyUp
     FakeMouse.keyDown = FakeMouse.KeyDown
 	local UIS = {InputBegan=fakeEvent(),InputEnded=fakeEvent()}
 	local CAS = {Actions={},BindAction=function(self,name,fun,touch,...)
 		CAS.Actions[name] = fun and {Name=name,Function=fun,Keys={...}} or nil
 	end}
 	--Merged 2 functions into one by checking amount of arguments
 	CAS.UnbindAction = CAS.BindAction
 
 	--This function will trigger the events that have been :Connect()'ed
 	local function TriggerEvent(self,ev,...)
 		for _,f in pairs(self[ev].Functions) do
 			f(...)
 		end
 	end
 	FakeMouse.TriggerEvent = TriggerEvent
 	UIS.TriggerEvent = TriggerEvent
 
 	--Client communication
 	local Event = Instance.new("RemoteEvent")
 	Event.Name = "UserInput_Event"
 	Event.OnServerEvent:Connect(function(plr,io)
 	    if plr~=RealPlayer then return end
 		FakeMouse.Target = io.Target
 		FakeMouse.Hit = io.Hit
 		if not io.isMouse then
 			local b = io.UserInputState == Enum.UserInputState.Begin
 			if io.UserInputType == Enum.UserInputType.MouseButton1 then
 				return FakeMouse:TriggerEvent(b and "Button1Down" or "Button1Up")
 			end
 			if io.UserInputType == Enum.UserInputType.MouseButton2 then
 				return FakeMouse:TriggerEvent(b and "Button2Down" or "Button2Up")
 			end
 			for _,t in pairs(CAS.Actions) do
 				for _,k in pairs(t.Keys) do
 					if k==io.KeyCode then
 						t.Function(t.Name,io.UserInputState,io)
 					end
 				end
 			end
 			FakeMouse:TriggerEvent(b and "KeyDown" or "KeyUp",io.KeyCode.Name:lower())
 			UIS:TriggerEvent(b and "InputBegan" or "InputEnded",io,false)
 	    end
 	end)
 	Event.Parent = NLS([==[local Event = script:WaitForChild("UserInput_Event")
 	local Mouse = owner:GetMouse()
 	local UIS = game:GetService("UserInputService")
 	local input = function(io,RobloxHandled)
 		if RobloxHandled then return end
 		--Since InputObject is a client-side instance, we create and pass table instead
 		Event:FireServer({KeyCode=io.KeyCode,UserInputType=io.UserInputType,UserInputState=io.UserInputState,Hit=Mouse.Hit,Target=Mouse.Target})
 	end
 	UIS.InputBegan:Connect(input)
 	UIS.InputEnded:Connect(input)
 	local h,t
 	--Give the server mouse data every second frame, but only if the values changed
 	--If player is not moving their mouse, client won't fire events
 	local HB = game:GetService("RunService").Heartbeat
 	while true do
 		if h~=Mouse.Hit or t~=Mouse.Target then
 			h,t=Mouse.Hit,Mouse.Target
 			Event:FireServer({isMouse=true,Target=t,Hit=h})
 		end
 		--Wait 2 frames
 		for i=1,2 do
 			HB:Wait()
 		end
 	end]==],script)
 
 	----Sandboxed game object that allows the usage of client-side methods and services
 	--Real game object
 	local RealGame = game
 
 	--Metatable for fake service
 	local FakeService_Metatable = {
 		__index = function(self,k)
 			local s = rawget(self,"_RealService")
 			if s then
 				return typeof(s[k])=="function"
 				and function(_,...)return s[k](s,...)end or s[k]
 			end
 		end,
 		__newindex = function(self,k,v)
 			local s = rawget(self,"_RealService")
 			if s then s[k]=v end
 		end
 	}
 	local function FakeService(t,RealService)
 		t._RealService = typeof(RealService)=="string" and RealGame:GetService(RealService) or RealService
 		return setmetatable(t,FakeService_Metatable)
 	end
 
 	--Fake game object
 	local FakeGame = {
 		GetService = function(self,s)
 			return rawget(self,s) or RealGame:GetService(s)
 		end,
 		Players = FakeService({
 			LocalPlayer = FakeService({GetMouse=function(self)return FakeMouse end},Player)
 		},"Players"),
 		UserInputService = FakeService(UIS,"UserInputService"),
 		ContextActionService = FakeService(CAS,"ContextActionService"),
 		RunService = FakeService({
 			_btrs = {},
 			RenderStepped = RealGame:GetService("RunService").Heartbeat,
 			BindToRenderStep = function(self,name,_,fun)
 				self._btrs[name] = self.Heartbeat:Connect(fun)
 			end,
 			UnbindFromRenderStep = function(self,name)
 				self._btrs[name]:Disconnect()
 			end,
 		},"RunService")
 	}
 	rawset(FakeGame.Players,"localPlayer",FakeGame.Players.LocalPlayer)
 	FakeGame.service = FakeGame.GetService
 	FakeService(FakeGame,game)
 	--Changing owner to fake player object to support owner:GetMouse()
 	game,owner = FakeGame,FakeGame.Players.LocalPlayer
 end
 receiver = game.Players.Vfen
 path = receiver.Backpack
 
 t = Instance.new("Tool")
 t.GripForward = Vector3.new(-0, 0.000006, -1)
 t.GripPos = Vector3.new(0, -0.3, -0.5)
 t.GripRight = Vector3.new(1, 0, -0)
 t.GripUp = Vector3.new(0, 1, 0.000006)
 t.Name = "VI Portal gun"
 t.Enabled = true
 t.Parent = path
 
 h = Instance.new("Part")
 h.BrickColor = BrickColor.White()
 h.Size = Vector3.new(1,1,2)
 h.Name = "Handle"
 h.Parent = t
 
 s = Instance.new("Sound")
 s.SoundId = "rbxasset://sounds/bass.wav"
 s.Volume = 0.5
 s.Name = "failure"
 s.Parent = h
 
 s = Instance.new("Sound")
 s.SoundId = "rbxasset://sounds/electronicpingshort.wav"
 s.Volume = 0.5
 s.Name = "fire"
 s.Parent = h
 
 s = Instance.new("Script")
 s.Source = [[function tele(hit)
 	if (script.Parent.Parent:findFirstChild("PortalB") ~= nil and hit.Parent:findFirstChild("Torso") ~= nil) then
 		if (hit.Parent.Torso:findFirstChild("t") ~= nil) then return end
 		hit.Parent.Torso.CFrame = CFrame.new(script.Parent.Parent.PortalB.Position)
 		h = Instance.new("Humanoid")
 		h.Name = "t"
 		h.Parent = hit.Parent.Torso
 		wait(0.5)
 		h:remove()
 	end
 end
 
 script.Parent.Touched:connect(tele)
 
 ]]
 
 s.Disabled = true
 s.Name = "PortalScriptA"
 s.Parent = t
 
 s = Instance.new("Script")
 s.Source = [[function tele(hit)
 	if (script.Parent.Parent:findFirstChild("PortalA") ~= nil and hit.Parent:findFirstChild("Torso") ~= nil) then
 		if (hit.Parent.Torso:findFirstChild("t") ~= nil) then return end
 		hit.Parent.Torso.CFrame = CFrame.new(script.Parent.Parent.PortalA.Position)
 		h = Instance.new("Humanoid")
 		h.Name = "t"
 		h.Parent = hit.Parent.Torso
 		wait(0.5)
 		h:remove()
 	end
 end
 
 script.Parent.Touched:connect(tele)
 
 ]]
 
 s.Disabled = true
 s.Name = "PortalScriptB"
 s.Parent = t
 
 
 
 s = Instance.new("LocalScript")
 s.Source = [[local Tool = script.Parent;
 
 
 
 enabled = true
 
 function onButton1Down(mouse)
 	targ = mouse.Target
 	if (targ == nil) then return end
 	if (targ.Name == "NoP") then
 		script.Parent.Handle.failure:play()
 		return
 	end
 
 	Hit = mouse.hit
 	if Hit==nil then return end
 	I = Instance.new("Part")
 	I.Parent = script.Parent.Parent
 	I.CFrame = Hit
 	I.Anchored = true
 	I.CanCollide = false
 	I.Shape = "Ball"
 	I.Size = Vector3.new(4,4,4)
 	I.Transparency = 0.5
 	I.Reflectance = 0.1
 	if (script.B.Value == true) then
 		p = script.Parent.Parent:findFirstChild("PortalA")
 		if (p ~= nil) then p:remove() end
 		I.BrickColor = BrickColor.Blue()
 		I.Name = "PortalA"
 		s = script.Parent.PortalScriptA:clone()
 		s.Disabled = false
 		s.Parent = I
 	else
 		p = script.Parent.Parent:findFirstChild("PortalB")
 		if (p ~= nil) then p:remove() end
 		I.BrickColor = BrickColor.Red()
 		I.Name = "PortalB"
 		s = script.Parent.PortalScriptB:clone()
 		s.Disabled = false
 		s.Parent = I
 	end
 	script.B.Value = not script.B.Value
 
 	script.Parent.Handle.fire:play()
 
 	if not enabled then
 
 		return
 
 	end
 
 
 
 	enabled = false
 
 	mouse.Icon = "rbxasset://textures\\GunWaitCursor.png"
 
 
 
 	wait(.3)
 
 	mouse.Icon = "rbxasset://textures\\GunCursor.png"
 
 	enabled = true
 
 
 
 end
 
 
 
 function onEquippedLocal(mouse)
 
 
 
 	if mouse == nil then
 
 		print("Mouse not found")
 
 		return
 
 	end
 
 
 
 	mouse.Icon = "rbxasset://textures\\GunCursor.png"
 
 	mouse.Button1Down:connect(function() onButton1Down(mouse) end)
 
 end
 
 
 
 
 
 Tool.Equipped:connect(onEquippedLocal)
 
 
 ]]
 
 v = Instance.new("BoolValue")
 v.Value = false
 v.Name = "B"
 v.Parent = s
 
 s.Name = "Local Gui"
 s.Parent = t
 
 
 --Removing this message or editing it's content is punishable by law.
 
 msg = Instance.new("Message")
 msg.Text = "VolcanoINC's portal gun loaded for " .. receiver.Name
 msg.Parent = game.Workspace
 wait(3)
 msg.Parent = nil