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)