Tom Chapman is a Manchester-based writer with square eyes and a love of a good pun. Raised on a diet of Jurassic Park and Jumanji, this '90s boy had VHS movies flowing in his blood from a young age.

After replying in this thread, memories of playing doom (and doom 2) came back to me. One of the stranger things in Doom that I never figured out was what caused the doom marine to scream and give a ...