One of the unique features of Roblox is that it allows players to create their own games using the Roblox Studio, a game development tool that utilizes a simple drag-and-drop interface.

In ROBLOX Studio, open the Plugins tab and click Build Rig. Then, choose a rig type which offers the different Avatar models that ROBLOX allows players to use.

While not bad by any stretch, especially given that so many Creator Studios exist in the universe, it is fair to say that there are improvements that can be made, and the Roblox team knows that.