FireGun No Tool

while wait() and game:IsLoaded() ~= true do end

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
local camera = workspace.CurrentCamera

local bulletSpeed = 150
local bulletSize = Vector3.new(0.2, 0.2, 2)
local bulletColor = Color3.fromRGB(255, 0, 0)

local function shoot()
    local character = player.Character
    if not character then return end

    local root = character:FindFirstChild("HumanoidRootPart")
    if not root then return end

    local bullet = Instance.new("Part")
    bullet.Size = bulletSize
    bullet.Color = bulletColor
    bullet.Material = Enum.Material.Neon
    bullet.CanCollide = false
    bullet.Anchored = false
    bullet.Shape = Enum.PartType.Cylinder
    bullet.CFrame = CFrame.new(root.Position, mouse.Hit.Position)

    local velocity = Instance.new("BodyVelocity")
    velocity.Velocity = (mouse.Hit.Position - root.Position).Unit * bulletSpeed
    velocity.MaxForce = Vector3.new(math.huge, math.huge, math.huge)
    velocity.Parent = bullet

    bullet.Parent = workspace
    game:GetService("Debris"):AddItem(bullet, 3)

    bullet.Touched:Connect(function(hit)
        local hitPlayer = game.Players:GetPlayerFromCharacter(hit.Parent)
        if hitPlayer ~= game.Players.LocalPlayer then
            local humanoid = hit.Parent:FindFirstChildOfClass("Humanoid")
            if humanoid then
                humanoid.Health = 0
            end
        end
    end)
end

mouse.Button1Down:Connect(shoot)