OBBY

Moving Platform

Paste as a Script inside a part. The part is anchored and tweened back and forth. Change OFFSET and DURATION at the top.

-- Paste as a Script inside the moving part.

local TweenService = game:GetService("TweenService")

local OFFSET = Vector3.new(0, 0, 24)
local DURATION = 3

local part = script.Parent
if not part or not part:IsA("BasePart") then
	return
end

part.Anchored = true

local tween = TweenService:Create(
	part,
	TweenInfo.new(DURATION, Enum.EasingStyle.Sine, Enum.EasingDirection.InOut, -1, true),
	{ Position = part.Position + OFFSET }
)
tween:Play()