Cool tail script :3

local Parts = {}
local Parts2 = {}
local Direction = 1
local loudness = 0
local TColor = BrickColor.new("Black")
for i = 1, 100 do
  local p = Instance.new("Part", game.Players.LocalPlayer.Character.Torso)
  p.Size = Vector3.new(0.2, 0.2, 0.2)
  p.Anchored = true
  p.CanCollide = false
  p.Material = "Neon"
  p.Position = game.Players.LocalPlayer.Character.Torso.Position
  table.insert(Parts, p)
end
for i = 1, 100 do
  local p = Instance.new("Part", game.Players.LocalPlayer.Character.Torso)
  p.Size = Vector3.new(0.2, 0.2, 0.2)
  p.Anchored = true
  p.CanCollide = false
  p.Material = "Neon"
  p.Position = game.Players.LocalPlayer.Character.Torso.Position
  table.insert(Parts2, p)
end
local sound = Instance.new("Sound", game.Players.LocalPlayer.Character.Torso) sound.Looped = true
sound.SoundId = "http://www.roblox.com/asset?id=686626589"
sound.Volume = 100
sound:Play()
spawn(function()
  local SelectedPart = 0
  while true do
    if Direction == 1 then
      if SelectedPart < #Parts then
        SelectedPart = SelectedPart + Direction
      else
        Direction = -1
        TColor = BrickColor.Random()
      end
    elseif Direction == -1 then
      if SelectedPart > 1 then
        SelectedPart = SelectedPart + Direction
      else
        Direction = 1
        TColor = BrickColor.Random()
      end
    end
    local sel = Parts[SelectedPart]
    local sel2 = Parts2[SelectedPart]
    sel.BrickColor = BrickColor.Random()
    sel2.BrickColor = BrickColor.Random()
    loudness = sound.PlaybackLoudness / 500
    sel.Size = Vector3.new(loudness, loudness, 0.2)
    sel2.Size = Vector3.new(loudness, loudness, 0.2)
    wait()
    sel.BrickColor = TColor
    sel2.BrickColor = TColor
  end
end)
game:GetService("RunService").RenderStepped:connect(function()
  for i = 1, #Parts do
    if i == 1 then
      Parts[i].CFrame = Parts[i].CFrame:lerp(game.Players.LocalPlayer.Character.Torso.CFrame, 0.9)
    else
      Parts[i].CFrame = Parts[i].CFrame:lerp(Parts[i - 1].CFrame * CFrame.Angles(-loudness / 20, math.sin(-loudness / 50), 0) * CFrame.new(0, 0, 0.15), 0.8)
    end
  end
  for i = 1, #Parts2 do
    if i == 1 then
      Parts2[i].CFrame = Parts2[i].CFrame:lerp(game.Players.LocalPlayer.Character.Torso.CFrame, 0.9)
    else
      Parts2[i].CFrame = Parts2[i].CFrame:lerp(Parts2[i - 1].CFrame * CFrame.Angles(-loudness / 20, math.sin(loudness / 50), 0) * CFrame.new(0, 0, 0.15), 0.8)
    end
  end
end)