"It works, make the text fade in from the bottom of the screen, slowly move up to the top and fade away. Also, make the black screen cover the players entire screen."

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

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

local textLabel = Instance.new("TextLabel", blackScreen)
textLabel.Text = "Your text here"
textLabel.TextColor3 = Color3.fromRGB(255, 255, 255)
textLabel.BackgroundTransparency = 1
textLabel.Position = UDim2.new(0.5, 0, 1, 0) -- start from bottom of the screen
textLabel.AnchorPoint = Vector2.new(0.5, 0.5)

-- Tweening the text to move up and fade away 
local tweenService = game:GetService("TweenService")
local tweenInfo = TweenInfo.new(5, Enum.EasingStyle.Linear, Enum.EasingDirection.Out, 0, false, 0)
local goal = {Position = UDim2.new(0.5, 0, 0, 0), TextTransparency = 1} -- move to top of the screen

local tween = tweenService:Create(textLabel, tweenInfo, goal)
tween:Play()

-- Instructions: 
1. Create a LocalScript under StarterGui.
2. Copy and paste this code into the LocalScript.
3. Replace "Your text here" with the text you want to display.
4. Run the game and the text will fade in from the bottom, move up the screen, and then fade away. The black screen will cover the player's entire screen.