Note that it is not an accurate representation of the Handy’s behavior irl. There are speed caps, minimum speed, BLE stutters and other factors to be taken into account when dealing with a real Handy.
If you make an extremely fast script, the graphic can go like this, but an actual Handy cannot.
So essentially you are just scripting to a skinned simulator.
If you just care about the graphics, what I could think of at the moment is to grab OFS Simulator3D and slap a custom model onto it.