Just an easy and free to use key system

--Made by fablo1358 and team_f0ul1guy!

local Players = game:GetService("Players")
local player = Players.LocalPlayer
local PlayerGui = player:WaitForChild("PlayerGui")

local screenGui = Instance.new("ScreenGui")
local frame = Instance.new("Frame")
local getKeyButton = Instance.new("TextButton")
local submitButton = Instance.new("TextButton")
local textBox = Instance.new("TextBox")
local correctCode = "1234ABCD" --CHANGE "1234ABCD" TO YOUR CODE

screenGui.Parent = PlayerGui

frame.Size = UDim2.new(0, 300, 0, )
frame.Position = .(, -, , -)
frame.Parent = screenGui

getKeyButton.Size = .(, , , )
getKeyButton.Position = .(, , , )
getKeyButton.Text = 
getKeyButton.Parent = frame

submitButton.Size = .(, , , )
submitButton.Position = .(, , , )
submitButton.Text = 
submitButton.Parent = frame

textBox.Size = .(, , , )
textBox.Position = .(, -, , )
textBox.PlaceholderText = 
textBox.Parent = frame

getKeyButton.MouseButton1Click:(()
    (correctCode)
)

submitButton.MouseButton1Click:(()
     textBox.Text == correctCode 
        screenGui:()
    
)