Throughout the levels of Doom Eternal are several collectibles. While some of them are purely for fun, cheat codes can impact the game. Once collected, you can select cheat codes before replaying ...

You won't be able to access Slayer Gates while you have cheat codes activated, so be aware of this if you replay a level and try to gain entry. The first of the Cheat Codes can be found near the end ...

The first of the Cheat Codes can be found near the end of Hell on Earth. Walk through the corridor in the image below, and you'll see a yellow question mark hidden behind a gate above you. Continue ...