Spot the difference between these two images

Spot the difference between these two images is a screamer video made by Zakawat liaqat.

The video starts to asks the viewer to find the differences between two pictures of volcanoes.

The song (but originally played it was the a-ha - Take On Me, the video grewed up the internet worldwide, but also playing in background. but at 0:35, a face from What's Wrong? pops up along with a loud screech. then the screamer pops up again along with a yet another loud screech.

Link
NOTE : The following video contains a screamer!
 * youtube.com/watch?v=8zBsS4r_bHs