Killerbot arm

Player = game:GetService("Players").LocalPlayer
PlayerGui = Player.PlayerGui
Cam = workspace.CurrentCamera
Backpack = Player.Backpack
Character = Player.Character
Humanoid = Character.Humanoid
Mouse = Player:GetMouse()
RootPart = Character["HumanoidRootPart"]
Torso = Character["Torso"]
Head = Character["Head"]
RightArm = Character["Right Arm"]
LeftArm = Character["Left Arm"]
RightLeg = Character["Right Leg"]
LeftLeg = Character["Left Leg"]
RootJoint = RootPart["RootJoint"]
Neck = Torso["Neck"]
RightShoulder = Torso["Right Shoulder"]
LeftShoulder = Torso["Left Shoulder"]
RightHip = Torso["Right Hip"]
LeftHip = Torso["Left Hip"]
local Weapon = Instance.new("Model")
Weapon.Name = "Adds"
Weapon.Parent = Character

function CreatePart(FORMFACTOR, PARENT, MATERIAL, REFLECTANCE, TRANSPARENCY, BRICKCOLOR, NAME, SIZE, ANCHOR)
	local NEWPART = Instance.new("Part")
	NEWPART.formFactor = FORMFACTOR
	NEWPART.Reflectance = REFLECTANCE
	NEWPART.Transparency = TRANSPARENCY
	NEWPART.CanCollide = false
	NEWPART.Locked = true
	NEWPART.Anchored = true
	if ANCHOR == false then
		NEWPART.Anchored = false
	end
	NEWPART.BrickColor = BRICKC(tostring(BRICKCOLOR))
	NEWPART.Name = NAME
	NEWPART.Size = SIZE
	NEWPART.Position = Torso.Position
	NEWPART.Material = MATERIAL
	NEWPART:BreakJoints()
	NEWPART.Parent = PARENT
	return NEWPART
end

	local function weldBetween(a, b)
	    local weldd = Instance.new("ManualWeld")
	    weldd.Part0 = a
	    weldd.Part1 = b
	    weldd.C0 = CFrame.new()
	    weldd.C1 = b.CFrame:inverse() * a.CFrame
	    weldd.Parent = a
	    return weldd
	end

function CreateWeldOrSnapOrMotor(TYPE, PARENT, PART0, PART1, C0, C1)
	local NEWWELD = Instance.new(TYPE)
	NEWWELD.Part0 = PART0
	NEWWELD.Part1 = PART1
	NEWWELD.C0 = C0
	NEWWELD.C1 = C1
	NEWWELD.Parent = PARENT
	return NEWWELD
end

IT = Instance.new
CF = CFrame.new
VT = Vector3.new
RAD = math.rad
C3 = Color3.new
UD2 = UDim2.new
BRICKC = BrickColor.new
ANGLES = CFrame.Angles
EULER = CFrame.fromEulerAnglesXYZ
COS = math.cos
ACOS = math.acos
SIN = math.sin
ASIN = math.asin
ABS = math.abs
MRANDOM = math.random
FLOOR = math.floor

function MakeForm(PART,TYPE)
	if TYPE == "Cyl" then
		local MSH = Instance.new("CylinderMesh",PART)
	elseif TYPE == "Ball" then
		local MSH =  Instance.new("SpecialMesh",PART)
		MSH.MeshType = "Sphere"
	elseif TYPE == "Wedge" then
		local MSH =  Instance.new("SpecialMesh",PART)
		MSH.MeshType = "Wedge"
	end
end

local Part = CreatePart(3, Character, "Metal", 0, 0, "Mid gray", "Part", VT(0.4,0.4,0.4),false)
for i = 1, 8 do
	local Piece = CreatePart(3, Character, "Metal", 0, 0, "Mid gray", "Eye", VT(0,0.35,0.41),false)
	CreateWeldOrSnapOrMotor("Weld", Handle, Part, Piece, CF(0, 0, 0) * ANGLES(RAD(0), RAD((360/8)*i), RAD(0)), CF(0, 0, 0))
end
RightArm.Transparency = 1
local BasePart = CreatePart(3, Weapon, "Metal", 0, 0, "really black", "Part", VT(1,2,1),false)
CreateWeldOrSnapOrMotor("Weld", RightArm, RightArm, BasePart, CF(0,0,0) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local Sphere = CreatePart(3, Weapon, "Metal", 0, 0, "Really red", "Part", VT(1.4,1.4,1.4),false)
MakeForm(Sphere,"Ball")
CreateWeldOrSnapOrMotor("Weld", BasePart, BasePart, Sphere, CF(0.2,0.8,0.1) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local LaserPart = CreatePart(3, Weapon, "Neon", 0, 0, "Really  black", "Part", VT(0.3,0.3,0.1),false)
MakeForm(LaserPart,"Ball")
CreateWeldOrSnapOrMotor("Weld", Sphere, Sphere, LaserPart, CF(0,0,-0.65) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local Bump = CreatePart(3, Weapon, "Metal", 0, 0, "Really red", "Part", VT(0.3,0.3,0.2),false)
MakeForm(Bump,"Ball")
CreateWeldOrSnapOrMotor("Weld", Sphere, Sphere, Bump, CF(0,0,0.65) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local BottomLaser = CreatePart(3, Weapon, "Neon", 0, 0, "Lime green", "Part", VT(0.4,0,0.4),false)
MakeForm(BottomLaser,"Cyl")
CreateWeldOrSnapOrMotor("Weld", BasePart, BasePart, BottomLaser, CF(0,-1,0) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local Part1 = CreatePart(3, Weapon, "Neon", 0, 0, "Really black", "Part", VT(0,0.5,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, BasePart, Part1, CF(0,-0.76,-0.26) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local Part2 = CreatePart(3, Weapon, "Neon", 0, 0, "Really red", "Part", VT(0,0.5,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part1, Part2, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(-25)), CF(0, -0.25, 0))
local Part3 = CreatePart(3, Weapon, "Neon", 0, 0, "Lime green", "Part", VT(0,0.5,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part1, Part3, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(-90)), CF(0, -0.26, 0))
local Part4 = CreatePart(3, Weapon, "Neon", 0, 0, "Really black", "Part", VT(0,0.56,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part2, Part4, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(90)), CF(0, -0.26, 0))
local Part5 = CreatePart(3, Weapon, "Neon", 0, 0, "Really red", "Part", VT(0,0.56,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part4, Part5, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(-125)), CF(0, -0.26, 0))
local Part = CreatePart(3, Weapon, "Neon", 0, 0, "Really red", "Part", VT(0,0.25,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part4, Part, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(25)), CF(0, -0.26/2, 0))
local Part = CreatePart(3, Weapon, "Neon", 0, 0, "Really black", "Part", VT(0,0.3,0.5),false)
CreateWeldOrSnapOrMotor("Weld", BasePart, Part2, Part, CF(0,0.25,0) * ANGLES(RAD(0), RAD(0), RAD(-65)), CF(0, -0.31/2, 0))
local Part = CreatePart(3, Weapon, "Neon", 0, 0, "Really black", "Part", VT(1.4,0,1.4),false)
MakeForm(Part,"Cyl")
CreateWeldOrSnapOrMotor("Weld", Sphere, Sphere, Part, CF(0.035,0,0) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))
local Part = CreatePart(3, Weapon, "Neon", 0, 0, "Really red", "Part", VT(1.4,0,1.4),false)
MakeForm(Part,"Cyl")
CreateWeldOrSnapOrMotor("Weld", Sphere, Sphere, Part, CF(0,-0.035,0) * ANGLES(RAD(0), RAD(0), RAD(90)), CF(0, 0, 0))
local Sphere = CreatePart(3, Weapon, "Metal", 0, 0, "Lime green", "Part", VT(0.3,1.6,0.7),false)
MakeForm(Sphere,"Ball")
CreateWeldOrSnapOrMotor("Weld", BasePart, BasePart, Sphere, CF(0.45,0.5,0) * ANGLES(RAD(0), RAD(0), RAD(0)), CF(0, 0, 0))