--local script

local player = game.Players.LocalPlayer
local char = player.Character or player.CharacterAdded:wait()
local human = char:WaitForChild('Humanoid')
local maxhealth = human.MaxHealth
local redzone = maxhealth/4
local red = Color3. from RGB (255,0,0)
local green = Color3.fromRGB(0,255,0)
local gui = script.Parent

human.HealthChanged:connect(function(newhealth)
    gui.BackgroundColor3 = human.Health <= redzone and red or green
    gui:TweenSize(UDim2.new(newhealth/maxhealth),'Out','Quad',1)
end)