Will it work with FE? A code for a quiz, worked in local server.

I created a code for a quiz, it works in local server test, but will it work in game? And will ANYTHING that worked in roblox studio local server test mode work in game? It's a local script in GUI

game:GetService("UserInputService").InputBegan:connect(function(Object)
    if Object.KeyCode == Enum.KeyCode.Return then
        for i, p in pairs (game.Players:GetPlayers()) do
            if (p.PlayerGui:FindFirstChild("Question")) ~= nil then
                if script.Parent.Answer.Text == "Mirror" then
                    workspace.Question1:Destroy()
                    workspace.Quest1:Destroy()
                    script.Parent:Destroy()
                    print("Succes")
                end
            end
        end
    end
end)