Animating random extrusion of faces?

Hi. Im Kris, and Im working on an animation for a client. There is a base of extruded faces in random manner, and as camera moves away from that base, I would love to animate an extrusion of those faces. How can I do that? What shall I look at?

hello, maybe look into shapekeys? You could inset the faces, create 2 shapekeys, the second being the inset moved up

Yes as moonboots said shape keys will be the way to do it:

solid. It works perfectly. Thank you for the heads up! Really nice feature.