AR in opening to new cartoon

[King_of_tf]

In an opening for a new cartoon series called Super Hero Squad (About a city filled with Marvel super heroes). In each episode the opening shows the heroes battling such villians as Dr. Doom, Mole Man, Modook, etc. Mole man drops a crystal to which the Hulk picks it up.

He is later shown still holding it and transforms. Each episode a different:

ex:

Into grey hulk

But in the first episode he turns into a baby