Dr.octagonapus and WTF BOOM!! Slowed down

Dr.octagonapus and WTF BOOM!! Slowed down is a Screamer Video uploaded to YouTube by JoeyDePeter.

Plot
The video starts with the video's title card. First, it shows the Dr. Octagonapus Meme, with the sound slowed down. Then, it shows the WTF Boom sound byte also slowed down. The picture has a turtle running away from an Explosion, with a Caption, "WTF?". Then the credits roll with, "K Bye rate and comment". But not long after, a picture of Regan Macneil from "The Excorcist" pops up with a scream that seems like the voice of the video's maker, thus ending the video.

Link
NOTE: The following video contains a screamer!
 * youtube.com/watch?v=LgYNdNET7u4