How to make a basic Roblox Studio GUI Play Button.

Step 1 - Insert a ScreenGui inside of StarterGui.

Step 2 - Insert a Frame inside of the ScreenGui.

Step 3 - Insert a TextButton inside of the frame.

Step 4 - Insert a script inside of the TextButton

Step 5 - Put this code in the script -

local btn = script. Parent --The TextButton
local frame = btn.Parent

btn.MouseButton1Click:Connect(function()
  frame.Visible = false -- sets Frame and TextButton invisible
end)