-scripts- local Player = game.Players.LocalPlayer local Humanoid = Player.Character.Humanoid local ShiftToRun = false local OriginalWalkSpeed = 16 -- This is is what the players walkspeed will be on default local RunningWalkSpeed = 32 -- Change this to whatever you want the players walkspeed to be when they click shift. local function onKeyPress(input) if input.KeyCode == Enum.KeyCode.LeftShift then ShiftToRun = true Humanoid.WalkSpeed = RunningWalkSpeed end end local function onKeyRelease(input) if input.KeyCode == Enum.KeyCode.LeftShift then ShiftToRun = false Humanoid.WalkSpeed = OriginalWalkSpeed end end game:GetService("UserInputService").InputBegan:Connect(onKeyPress) game:GetService("UserInputService").InputEnded:Connect(onKeyRelease)