"make a play and quit button"

-- local script (StarterGUI) 
local player = game.Players.LocalPlayer
local screenGui = Instance.new("ScreenGui", player.PlayerGui)

local background = Instance.new("Frame", screenGui)
background.BackgroundColor3 = Color3.fromRGB(0, 0, 0)
background.Size = UDim2.new(1, 0, 1, 0)

local playButton = Instance.new("TextButton", background)
playButton.Text = "Play"
playButton.TextColor3 = Color3.fromRGB(255, 255, 255)
playButton.BackgroundColor3 = Color3.fromRGB(0, 0, 0)
playButton.Size = UDim2.new(0.2, 0, 0.1, 0)
playButton.Position = UDim2.new(0.4, 0, 0.4, 0)
playButton.BorderSizePixel = 0

local quitButton = Instance.new("TextButton", background)
quitButton.Text = "Quit"
quitButton.TextColor3 = Color3.fromRGB(255, 255, 255)
quitButton.BackgroundColor3 = Color3.fromRGB(0, 0, 0)
quitButton.Size = UDim2.new(0.2, 0, 0.1, 0)
quitButton.Position = UDim2.new(0.4, 0, 0.6, 0)
quitButton.BorderSizePixel = 0

local uiCorner = Instance.new("UICorner", playButton)
uiCorner.CornerRadius = UDim.new(0, 5)

local uiCorner2 = Instance.new("UICorner", quitButton)
uiCorner2.CornerRadius = UDim.new(0, 5)