Why isn't it working?

Player = script.Parent.Parent.Parent
Tool = script.Parent
c = Player.Character
mouse = Player:GetMouse()
function onMouseButton1Down(mouse)
	x = Instance.new("Part")
	x.TopSurface = "Smooth"
	x.BottomSurface = "Smooth"
	x.Size = Vector3.new(1, 1.95, 1)
	x.BrickColor = BrickColor.new("Bright blue")
	x.Transparency = 0.5
	x.Reflectance = 0.2
	x.Parent = c
	game.Debris:AddItem(x, 30)
	w1 = Instance.new("Weld", c)
	w1.Part0 = w1.Parent["Right Arm"]
	w1.Part1 = x
	w1.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	y = Instance.new("Part")
	y.TopSurface = "Smooth"
	y.BottomSurface = "Smooth"
	y.Size = Vector3.new(1, 1.95, 1)
	y.BrickColor = BrickColor.new("Bright blue")		
	y.Transparency = 0.5
	y.Reflectance = 0.2
	y.Parent = c
	game.Debris:AddItem(y, 30)
	w2 = Instance.new("Weld", c)
	w2.Part0 = w2.Parent["Left Arm"]
	w2.Part1 = y
	w2.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	z = Instance.new("Part")
	z.TopSurface = "Smooth"
	z.BottomSurface = "Smooth"
	z.Size = Vector3.new(2, 1.95, 1)
	z.BrickColor = BrickColor.new("Bright blue")	
	z.Transparency = 0.5
	z.Reflectance = 0.2
	z.Parent = c
	game.Debris:AddItem(z, 30)
	w3 = Instance.new("Weld", c)
	w3.Part0 = w3.Parent["Torso"]
	w3.Part1 = z
	w3.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	a = Instance.new("Part")
	a.TopSurface = "Smooth"
	a.BottomSurface = "Smooth"
	a.Size = Vector3.new(1, 2, 1)
	a.BrickColor = BrickColor.new("Bright blue")
	a.Transparency = 0.5
	a.Reflectance = 0.2
	a.Parent = c
	game.Debris:AddItem(a, 30)
	w4 = Instance.new("Weld", c)
	w4.Part0 = w4.Parent["Left Leg"]
	w4.Part1 = a
	w4.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	b = Instance.new("Part")	
	b.TopSurface = "Smooth"
	b.BottomSurface = "Smooth"
	b.Size = Vector3.new(1, 2, 1)
	b.BrickColor = BrickColor.new("Bright blue")
	b.Transparency = 0.5
	b.Reflectance = 0.2
	b.Parent = c
	game.Debris:AddItem(b, 30)
	w5 = Instance.new("Weld", c)
	w5.Part0 = w5.Parent["Right Leg"]
	w5.Part1 = b
	w5.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	d = Instance.new("Part")
	d.TopSurface = "Smooth"
	d.BottomSurface = "Smooth"
	d.Size = Vector3.new(-1, -1, 0.2)
	d.BrickColor = BrickColor.new("Bright blue")
	d.Transparency = 0.5
	d.Reflectance = 0.2
	d.Parent = c
	w6 = Instance.new("Weld", c)
	w6.Part0 = w6.Parent["Torso"]
	w6.Part1 = d
	w6.C1 = CFrame.fromEulerAnglesXYZ(-1.6, 0, 0) *CFrame.new(0, 1, -1)
	game.Debris:AddItem(d, 30)
	e = Instance.new("Part")
	e.TopSurface = "Smooth"
	e.BottomSurface = "Smooth"
	e.Size = Vector3.new(2, 1, 1)
	e.BrickColor = BrickColor.new("Bright blue")	
	e.Transparency = 0.7
	e.Reflectance = 0.2
	e.Parent = c
	e.Shape = "Ball"
	f = Instance.new("SpecialMesh")
	f.Parent = e
	f.MeshType = "Head"
	f.Scale = Vector3.new(0, 0, 0)
	w7 = Instance.new("Weld", c)
	w7.Part0 = w7.Parent["Head"]
	w7.Part1 = e
	w7.C1 = CFrame.fromEulerAnglesXYZ(0, 0, 0) *CFrame.new(0, 0, 0)
	game.Debris:AddItem(e, 30)
end

function onSelected(mouse)
	mouse.Button1Down:connect(function() onMouseButton1Down(mouse) end)
end

Tool.Selected:connect(onSelected)

So, this is a Script, not a Local Script, which is in a HopperBin. The script works in solo mode but, when I'm joining the game it isn't working.I already tried making this script in a local script, didn't work.Any suggestions?