local plr = game:GetService("Players").LocalPlayer

local screen  = Instance.new("ScreenGui")
screen.Parent = plr.PlayerGui
screen.Name   = "Jerk"

local frame    = Instance.new("Frame")
frame.Parent   = screen
frame.Size     = UDim2.new(0,250,0,250)
frame.Position = UDim2.new(0,15,0,680)

frame.Active     = true
frame.Selectable = true
frame.Draggable  = true

local btn    = Instance.new("TextButton")
btn.Parent   = frame
btn.Size     = UDim2.new(0,25,0,25)
btn.Position = UDim2.new(0,225,0,0)
btn.Text     = "X"
btn.TextSize = 12

local text             = Instance.new("TextBox")
text.Parent            = frame
text.Size              = UDim2.new(0,80,0,35)
text.Position          = UDim2.new(0,90,0,100)
text.Text              = ""
text.PlaceholderText   = "Speed"
text.PlaceholderColor3 = Color3.fromRGB(70,70,70)
text.TextSize          = 12

local btn2    = Instance.new("TextButton")
btn2.Parent   = frame
btn2.Size     = text.Size
btn2.Position = UDim2.new(0,30,0,140)
btn2.Text     = "Start"
btn2.TextSize = 12

local btn3    = Instance.new("TextButton")
btn3.Parent   = frame
btn3.Size     = text.Size
btn3.Position = UDim2.new(0,150,0,140)
btn3.Text     = "Stop"
btn3.TextSize = 12

btn.MouseButton1Click:Connect(function()
    screen:Destroy()
end)

btn2.MouseButton1Click:Connect(function()
    local anim       = Instance.new("Animation")
    anim.AnimationId = "rbxassetid://168268306"
    local animtrack  = game.Players.LocalPlayer.Character.Humanoid.Animator:LoadAnimation(anim)
    animtrack.Looped = true
    animtrack:Play()
    animtrack:AdjustSpeed(100)
    
    btn3.MouseButton1Click:Connect(function()
        animtrack:Stop()
    end)
    text.FocusLost:Connect(function()
        animtrack:AdjustSpeed(text.Text)
    end)
end)

plr.CharacterAdded:Connect(function()
    local plr = game.Players.LocalPlayer

    local screen  = Instance.new("ScreenGui")
    screen.Parent = plr.PlayerGui
    screen.Name   = "Jerk"

    local frame    = Instance.new("Frame")
    frame.Parent   = screen
    frame.Size     = UDim2.new(0,250,0,250)
    frame.Position = UDim2.new(0,15,0,680)

    frame.Active     = true
    frame.Selectable = true
    frame.Draggable  = true

    local btn    = Instance.new("TextButton")
    btn.Parent   = frame
    btn.Size     = UDim2.new(0,25,0,25)
    btn.Position = UDim2.new(0,225,0,0)
    btn.Text     = "X"
    btn.TextSize = 12

    local text             = Instance.new("TextBox")
    text.Parent            = frame
    text.Size              = UDim2.new(0,80,0,35)
    text.Position          = UDim2.new(0,90,0,100)
    text.Text              = ""
    text.PlaceholderText   = "Speed"
    text.PlaceholderColor3 = Color3.fromRGB(70,70,70)
    text.TextSize          = 12

    local btn2    = Instance.new("TextButton")
    btn2.Parent   = frame
    btn2.Size     = text.Size
    btn2.Position = UDim2.new(0,30,0,140)
    btn2.Text     = "Start"
    btn2.TextSize = 12

    local btn3    = Instance.new("TextButton")
    btn3.Parent   = frame
    btn3.Size     = text.Size
    btn3.Position = UDim2.new(0,150,0,140)
    btn3.Text     = "Stop"
    btn3.TextSize = 12

    btn.MouseButton1Click:Connect(function()
        screen:Destroy()
    end)

    btn2.MouseButton1Click:Connect(function()
        local anim       = Instance.new("Animation")
        anim.AnimationId = "rbxassetid://168268306"
        local animtrack  = game.Players.LocalPlayer.Character.Humanoid.Animator:LoadAnimation(anim)
        animtrack.Looped = true
        animtrack:Play()
        animtrack:AdjustSpeed(100)
    
        btn3.MouseButton1Click:Connect(function()
            animtrack:Stop()
        end)
        text.FocusLost:Connect(function()
            animtrack:AdjustSpeed(text.Text)
        end)
    end)
end)