Local Fly

local velo = Instance.new("BodyVelocity", game.Players.LocalPlayer)
velo.MaxForce = Vector3.new(0,math.huge,0)
velo.Velocity = Vector3.new(0,60,0)

game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(key)
    if key == "e" then
        game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 50
        velo.Parent = game.Players.LocalPlayer.Character.HumanoidRootPart
    elseif key == "q" then
        game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 50
        velo.Parent = game.Players.LocalPlayer.Character.HumanoidRootPart
        velo.Velocity = Vector3.new(0,0.001,0)
    end
end)

game.Players.LocalPlayer:GetMouse().KeyUp:Connect(function(key)
    if key == "e" then
        game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 15
        velo.Parent = game.Players.LocalPlayer
    elseif key == "q" then
        game.Players.LocalPlayer.Character.Humanoid.WalkSpeed = 15
        velo.Parent = game.Players.LocalPlayer
        velo.Velocity = Vector3.new(0,60,0)
    end
end)