Doom – Classic Doom Secret: Walk Backwards to Get Cool Weapons

doom

I am trying to remember a secret in old (classic?) Doom game. Point is that you start level on a platform/balcony. If player walks forward towards monsters, you'll jump on the floor and won't be able to get on platform again. However, if you turn around, there is a not-so-hidden passage to a room with chainsaw or something else.

What was the name of that Doom version and what was the level number, as well as the weapon?

Spoiler alert:
I remember that episode while watching "Ready Player One".

There is a secret, where players should basically drive in reverse to solve.

Best Answer

In all versions of Doom 2, you can go backwards (or turn around) to get a chainsaw at the start of the very first level.

As mentioned in the question, if you move forwards, you'll fall down preventing you from getting the chainsaw since Doom 1 and 2 don't have a jump button.