Mirait0waGUI by chatgpt

local player = game.Players.LocalPlayer

-- GUI
local gui = Instance.new("ScreenGui")
gui.ResetOnSpawn = false
gui.Parent = player:WaitForChild("PlayerGui")

local frame = Instance.new("Frame")
frame.Parent = gui
frame.Size = UDim2.new(0, 400, 0, 300)
frame.Position = UDim2.new(0.5, -200, 0.5, -150)
frame.BackgroundColor3 = Color3.fromRGB(255, 255, 255)
frame.BorderSizePixel = 0

-- Button creator
local function createButton(text, posY)
	local button = Instance.new("TextButton")
	button.Parent = frame
	button.Size = UDim2.new(0, 300, 0, 50)
	button.Position = UDim2.new(0.5, -150, 0, posY)
	button.BackgroundColor3 = Color3.fromRGB(0, 120, 255)
	button.TextColor3 = Color3.fromRGB(255, 255, 255)
	button.TextScaled = true
	button.Text = text
	button.BorderSizePixel = 0
	return button
end

local decalBtn = createButton("Decal Spam: OFF", 30)
local skyBtn = createButton("Set Skybox", 120)
local particleBtn = createButton("Particle Spam: OFF", 210)

-- Toggles
local decalActive = false
local particleActive = false

local ASSET_ID = "rbxassetid://120977175725232"

-- DECAL LOOP (safe single loop)
task.spawn(function()
	while true do
		if decalActive then
			for _, v in ipairs(workspace:GetDescendants()) do
				if v:IsA("BasePart") then
					if not v:FindFirstChild("DecalSpam") then
						for _, face in ipairs(Enum.NormalId:GetEnumItems()) do
							local decal = Instance.new("Decal")
							decal.Name = "DecalSpam"
							decal.Texture = ASSET_ID
							decal.Face = face
							decal.Parent = v
						end
					end
				end
			end
		end
		task.wait(1)
	end
end)

-- PARTICLE LOOP
task.spawn(function()
	while true do
		if particleActive then
			for _, v in ipairs(workspace:GetDescendants()) do
				if v:IsA("BasePart") and not v:FindFirstChild("ParticleSpam") then
					local p = Instance.new("ParticleEmitter")
					p.Name = "ParticleSpam"
					p.Texture = ASSET_ID
					p.Rate = 100
					p.Lifetime = NumberRange.new(2)
					p.Speed = NumberRange.new(5)
					p.Parent = v
				end
			end
		end
		task.wait(1)
	end
end)

-- BUTTONS
decalBtn.MouseButton1Click:Connect(function()
	decalActive = not decalActive
	decalBtn.Text = decalActive and "Decal Spam: ON" or "Decal Spam: OFF"
end)

particleBtn.MouseButton1Click:Connect(function()
	particleActive = not particleActive
	particleBtn.Text = particleActive and "Particle Spam: ON" or "Particle Spam: OFF"
end)

skyBtn.MouseButton1Click:Connect(function()
	game.Lighting:ClearAllChildren()
	local sky = Instance.new("Sky")
	sky.SkyboxBk = ASSET_ID
	sky.SkyboxDn = ASSET_ID
	sky.SkyboxFt = ASSET_ID
	sky.SkyboxLf = ASSET_ID
	sky.SkyboxRt = ASSET_ID
	sky.SkyboxUp = ASSET_ID
	sky.Parent = game.Lighting
end)