Roblox - ESP

local gui = Instance.new("BillboardGui");
gui.Name = "";
gui.AlwaysOnTop = true;
gui.LightInfluence = 0;
gui.Size = UDim2.new(1.75, 0, 1.75, 0);
local frame = Instance.new("Frame", gui);
frame.BackgroundColor3 = Color3.fromRGB(170, 0, 0);
frame.Size = UDim2.new(1, 0, 1, 0);
frame.BorderSizePixel = 4;
frame.BorderColor3 = Color3.fromRGB(0, 0, 0);
local gi = gui:Clone();
local body = frame:Clone();
body.Parent = gi;
body.BackgroundColor3 = Color3.fromRGB(0, 170, 170);

for _, v in pairs(game:GetService("Players"):GetPlayers()) do
    if v.Name ~= game:GetService("Players").LocalPlayer.Name and v.Character and v.Character:FindFirstChild("Head") then
        gui:Clone().Parent = v.Character.Head;
    end
end