DestroyGUI.txt

local equipped = false
local Mouse = game.Players.LocalPlayer:GetMouse()

local box = Instance.new("SelectionBox", game.StarterGui)
box.Adornee = nil
box.Color3 = Color3.fromRGB(255, 255, 255)
box.SurfaceColor3 = Color3.fromRGB(255, 255, 255)
box.LineThickness = 0.1

-- Instances:

local DestroyUI = Instance.new("ScreenGui")
local Main = Instance.new("TextButton")
local Check = Instance.new("BoolValue")
local UITextSizeConstraint = Instance.new("UITextSizeConstraint")
local UIAspectRatioConstraint = Instance.new("UIAspectRatioConstraint")

--Properties:

DestroyUI.Name = "DestroyUI"
DestroyUI.Parent = game.CoreGui

Main.Name = "Main"
Main.Parent = DestroyUI
Main.AnchorPoint = Vector2.new(1, 0)
Main.BackgroundColor3 = Color3.fromRGB(255,255,255)
Main.BorderSizePixel = 0
Main.Position = UDim2.new(1, 0, 0, 0)
Main.Size = UDim2.new(0.150000006, 0, 0.0500000007, 0)
Main.AutoButtonColor = false
Main.Font = Enum.Font.SourceSansLight
Main.Text = "Destroy"
Main.TextColor3 = Color3.fromRGB(255, 0, 0)
Main.TextScaled = true
Main.TextSize = 14
Main.TextWrapped = true

Check.Parent = DestroyUI
Check.Value = false

UITextSizeConstraint.Parent = Main
UITextSizeConstraint.MaxTextSize = 40

UIAspectRatioConstraint.Parent = Main
UIAspectRatioConstraint.AspectRatio = 3.9268293380737

-- Scripts

local tweenInfo = TweenInfo.new(0.5, Enum.EasingStyle.Quint, Enum.EasingDirection.Out)

local tweenToGreen = {TextColor3 = Color3.fromRGB(0, 255, 127)}
local tweenToRed = {TextColor3 = Color3.fromRGB(255, 0, 0)}

local AnimationGreen = game:GetService("TweenService"):Create(Main, tweenInfo, tweenToGreen)
local AnimationRed = game:GetService("TweenService"):Create(Main, tweenInfo, tweenToRed)

Main.MouseButton1Down:Connect(function()
	if Check.Value == false then
		Check.Value = true
		AnimationGreen:Play()
		equipped = true
		box.Parent = game.Workspace
		while equipped == true do
			wait(0.1)
			box.Adornee = Mouse.Target
		end
	else
		Check.Value = false
		AnimationRed:Play()
		equipped = false
		box.Adornee = nil
		box.Parent = game.StarterGui
	end
end)

Mouse.Button1Down:Connect(function()
	if equipped == true then
		Mouse.Target:Destroy()
	end
end)