Wonder where the original DOOM got all of its gory and grisly sound effects from? Well, some of the answers may surprise you!

Thanks to YouTuber decino and indpendent sound artist perkristian, you can now check out a video below about some of the bizarre sources of the game’s sound effects. These range from several demons using edited stock clips from cats, bats, camels, and even skateboard wheels!

What do you think? Bring back any fond memories of DOOM? Feel free to share with us below!