ROBLOX Fireball Script

local Player = game.Players.LocalPlayer
local Character = Player.Character
RS = Character.Torso["Right Shoulder"]
local Mouse = Player:GetMouse()



function onKeyDown(key)
    key = key:lower()
    if key == "f" then
        for i  = 1,3 do
            RS.C0 = RS.C0*CFrame.Angles(0,0,0.5)
            wait()
        end
        Chat = game:GetService("Chat"):Chat(Character.Head, "Fire Style: Fireball Jutsu", Enum.ChatColor.Red)
        local Fireball = Instance.new("Part", Character)
        Fireball.Name = "Fireball"
        game.Debris:AddItem(Fireball, 7)
        Fireball.Shape = "Ball"
        Fireball.BrickColor = BrickColor.new("Really red")
        Fireball.Transparency = 0.7
        local FireEffect = Instance.new("Fire", Fireball)
        FireEffect.Size = 25
        FireEffect.Heat = 25
        Fireball.TopSurface = 0
        Fireball.BottomSurface = 0
        Fireball.CanCollide = false
        Fireball.Locked = true
        Fireball.CFrame = Character.Torso.CFrame*CFrame.new(0,0,-12)
        local BodyVelocity = Instance.new("BodyVelocity", Fireball)
        BodyVelocity.maxForce = Vector3.new(math.huge, math.huge, math.huge)
        BodyVelocity.velocity = Character.Torso.CFrame.lookVector*80
        function Hurt(Part)
            if Part.Parent:FindFirstChild("Humanoid") then
                Part.Parent.Humanoid.Health = Part.Parent.Humanoid.Health-15
            end
        end
        Fireball.Touched:connect(Hurt)
        wait(5)
        for i  = 1,3 do
            RS.C0 = RS.C0*CFrame.Angles(0,0,-0.5)
            wait()
        end
    end
end
Mouse.KeyDown:connect(onKeyDown)