Mash up of Corridor of Death / Grand Cathedral from Serious Sam: The Second Encounter and Tunguska from Serious Sam 4.
I saw a mash up of these two songs and I was wondering how did this guy combined them and as I thought he just played them together. I decided to make my version(it sounds the same btw) because that video was in 480p. That's it.
![](https://i.ytimg.com/vi/5YWkWMNhEZI/maxresdefault.jpg)