Fun little test you've conjured up here, funmi. Nice work.

Overall the animation is quite smooth. I particularly like the Hulk's out of socket arm movement. One thing that could, perhaps, use improvement is the sound design. Some of the sounds feel a bit too exaggerated, so to speak. In the future, you might want to add street noises or cars passing in the distance, or even a subtle white noise in the background.

Nonetheless, keep up the good work!