How to implement an animation of a character getting fat and moving at the same time?

I need to make a 3D model that goes from thin to fat but at the same time uses the same animations for walking, runing, jumping, etc.

Is this possible in Unity?

If so how could I approach this?

Here are some images of examples of what I’m looking for, any help or advices is greatly appreciated.

Thanks in advance!

3D Model fat and thin

Fat to thin states

You could use morph targets, we used that in our latest project, vertex animations are not supported by unity so it might be the best way for you to do it.

Here’s a good resource for that.