(Local Script) Viewer Gui (Varies)

local runser=  game:GetService("RunService")
if runser:IsClient() then
    local function MakeSpectatorGui(player)
        local SG = Instance.new("ScreenGui",player.PlayerGui)
        SG.Name = 'ViewerGui'

        local frame = Instance.new("Frame",SG)
        frame.BackgroundColor3 = Color3.new(0,0,0)
        frame.AnchorPoint = Vector2.new(.5,.5)
        frame.BackgroundTransparency = .5
        frame.Position = UDim2.new(.5,0,.75,0)
        frame.Size = UDim2.new(.5,0,.125,0)
        frame.Selectable = true
        frame.Active = true
        frame.Draggable = true

        local left = Instance.new("TextButton",frame)
        left.Name = 'Left'
        left.Size = UDim2.new(0.25, 0,1, 0)
        left.Text = '<-'

        local right = Instance.new("TextButton",frame)
        right.Size = left.Size
        right.Name = 'Right'
        right.Parent = frame
        right.AnchorPoint = Vector2.new(1, 1)
        right.Position = UDim2.new(1, 0,1, 0)
        right.Text = '->'

        local center = Instance.new("TextButton",frame)
        center.AnchorPoint = Vector2.new(1, 1)
        center.Position = UDim2.new(0.5, 0,1, 0)
        center.Size = UDim2.new(.25, 0,.5, 0)
        center.Name = 'Center'
        center.Text = 'Center'

        local TL = Instance.new("TextLabel",frame)
        TL.AnchorPoint = Vector2.new(0.5, 0)
        TL.Position = UDim2.new(0.5, 0,0, 0)
        TL.Size = UDim2.new(.5, 0,.5, 0)
        TL.Text = 'nil'

        for _,v in pairs(frame:GetChildren())do
            v.BackgroundColor3 = Color3.new(0,0,0)
            v.Font = Enum.Font.SciFi
            v.TextColor = BrickColor.new("Institutional white")
            v.TextScaled = true
        end
        local cam = workspace.CurrentCamera
        local num = 1
        left.MouseButton1Click:Connect(function()
            local players = game:GetService("Players"):GetChildren()
            num = num - 1
            if num>=0 then
                num = #players
            end
            while true do
                local players = game:GetService("Players"):GetChildren()
                if num==0 then
                    num = #players
                end
                local cpl = players[num]
                local cpc = cpl.Character
                if cpc~=nil then
                    if cpc:FindFirstChild('Head',true) then
                        -- cam.CFrame = cpc:FindFirstChild('Head',true).CFrame
                        cam.Focus = cpc:FindFirstChild('Head',true).CFrame
                        cam.CameraSubject = cpc:FindFirstChild('Head',true)
                        TL.Text = cpl.Name
                        break
                    else
                        num = num - 1
                    end
                else
                    num = num - 1
                end
                wait()
            end


        end)
        right.MouseButton1Click:Connect(function()
            local players = game:GetService("Players"):GetChildren()
            num = num + 1
            if num>#players then
                num = 1
            end
            while true do
                local players = game:GetService("Players"):GetChildren()
                if num>#players then
                    num = 1
                end
                local cpl = players[num]
                local cpc = cpl.Character
                if cpc~=nil then
                    if cpc:FindFirstChild('Head',true) then
                        -- cam.CFrame = cpc:FindFirstChild('Head',true).CFrame
                        cam.Focus = cpc:FindFirstChild('Head',true).CFrame
                        cam.CameraSubject = cpc:FindFirstChild('Head',true)
                        TL.Text = cpl.Name
                        break
                    else
                        num = num - 1
                    end
                else
                    num = num - 1
                end
                wait()
            end
        end)
        center.MouseButton1Click:Connect(function()
            while true do
                if player.Character~=nil then
                    if player.Character:FindFirstChild('Head',true)
                    then
                        cam.Focus = player.Character:FindFirstChild('Head',true).CFrame
                        cam.CameraSubject = player.Character:FindFirstChild('Head',true)
                        TL.Text = player.Name
                        num = 1
                        break
                    end
                end
                wait()
            end
        end)
        owner.Chatted:Connect(function(msg)
            if string.find(msg:lower(),'g/nog') then
                if owner:FindFirstChild('ViewerGui',true) then
                    owner:FindFirstChild('ViewerGui',true):Destroy()
                end
            end
        end)
        print'Say "g/nog" to destroy gui.'
    end
    MakeSpectatorGui(owner)
else
    error'Script must be local.'
end