I'm trying to fix this KeyDown Ki Blast attack, can someone help me?

The first part of the script is in a LocalScript called KiBlast:

Player = script.Parent.Parent
mouse = Player:GetMouse()
run = game:GetService("RunService")
function onKeyDown(key)
	script.Disabled = true
	Key = key:lower()
	if key == "q" then
		RightShoulder = Player.Character.Torso["Right Shoulder"]
		LeftShoulder = Player.Character.Torso["Left Shoulder"]
		Run = game:GetService("RunService")
		for i = 1,10 do
			LeftShoulder.C0 = LeftShoulder.C0 * CFrame.Angles(0,0,0.155)
			RightShoulder.C0 = RightShoulder.C0 * CFrame.Angles(0,0,0.155)
			Run.Stepped:wait(0.025)
		end
		x = Instance.new("Part")
		x.BrickColor = BrickColor.new("Pastel light blue")
		x.FormFactor = "Custom"
		x.Size = Vector3.new(2.4,2.4,2.4)
		x.TopSurface = "SmoothNoOutlines"
		x.BottomSurface = "SmoothNoOutlines"
		x.Shape = "Ball"
		x.Name = "ki"
		x.Transparency = 0.1
		kd = script.KiDamage:clone()
		kd.Parent = x
		y = Instance.new("BodyVelocity")
		y.maxForce = Vector3.new(math.huge, math.huge, math.huge)
		y.velocity = Player.Character["Right Arm"].CFrame.lookVector * 60
		x.Parent = workspace
		y.Parent = x
		light = Instance.new("PointLight")
		light.Parent = x
		light.Brightness = 100
		light.Color = Color3.new(170/255, 255/255, 255/255)
		light.Range = 8
		billboard = Instance.new("BillboardGui")
		billboard.Parent = x
		pic = Instance.new("ImageLabel")
		pic.Parent = billboard
		pic.BackgroundTransparency = 1
		pic.Image = "http://www.roblox.com/asset/?id=198656006"
		pic.ImageTransparency = 0.4
		pic.Size = UDim2.new(1, 0, 1, 0)
		pic.Name = "Light"
		pic.Visible = true
		x.CFrame = Player.Character["Right Arm"].CFrame * CFrame.new(0, -3, 0)
		kd.Disabled = false
		game.Debris:AddItem(x, 6)
		wait(0.25)
		for i = 1,10 do
			LeftShoulder.C0 = LeftShoulder.C0 * CFrame.Angles(0,0,-0.155)
			RightShoulder.C0 = RightShoulder.C0 * CFrame.Angles(0,0,-0.155)
			Run.Stepped:wait(0.025)
		end
	end
	script.Disabled = false
	wait(0.1)
end
mouse.KeyDown:connect(onKeyDown)

Part 2 is a Script called KiDamage that's inside the LocalScript KiBlast:

function onDamage(Part)
	if Part.Parent:FindFirstChild("Humanoid") ~= nil and Part.Parent.Name ~= "script.Parent.Name"
	then
		script.Disabled = true
		for i = 1, 25 do
			Part.Parent.Humanoid.Health = Part.Parent.Humanoid.Health - 1
			wait(0.05)
		end
		Part.Parent.Humanoid.PlatformStand = true
		script.Parent:remove()
	end
	wait(0.025)
end

script.Parent.Touched:connect(onDamage)

Whenever you press q, instead of going forward it goes up. Can someone tell me what's wrong with the code?

It goes wrong because

 y = Instance.new("BodyVelocity")
 y.maxForce = Vector3.new(math.huge, math.huge, math.huge)
 y.velocity = Player.Character["Right Arm"].CFrame.lookVector * 60

The movement of your arms animation makes it fire up.

 y = Instance.new("BodyVelocity")
 y.maxForce = Vector3.new(math.huge, math.huge, math.huge)
 y.velocity = Player.Character.Torso.CFrame.lookVector * 60

Firing from the torso should make it fire straight.