Changing the Mesh

Hello.

I could use some help on changing the mesh or switching out the player. I have this simple game where a guy runs around and when he is hit by a burger, i want him to become fatter. I have made two 3D models with the same armature/rig, one thin version of the player and one fat version. How would i switch to the next 3D model (when he collides with an object) while keeping the same position?

Right now it seems like the animation is controlled by the avatar.

Btw - I don't know much about coding and unity since i mostly work with 3D.

 

Easiest would be to just remove the thin model and instantiate a fat model. I suggest to have the mesh as a separate child object under a parent game object which has the scripts etc. . This way you can switch out the mesh easily without worrying about the rest of the state (for example health points, position, etc.).