Roblox’s R15 character rig is defined by a hierarchical skeleton of Motor6D joints. While client-side visual scaling is trivial, applying persistent, physics-accurate size changes that other players can see requires strict adherence to Filtering Enabled (FE) rules. A naive local script will only change the user’s local perception. A server-side script lacks direct access to the client’s UI input.
if new ~= current then hum.BodyHeightScale = new hum.BodyWidthScale = new hum.BodyDepthScale = new hum.HeadScale = new end FE R15 Size Gui Script
Create a RemoteEvent called ScalePlayer in ReplicatedStorage . Roblox’s R15 character rig is defined by a