DOOM Eternal: Exhibition of collectibles
If you spend hours scouring the nooks and crannies of every mission to make sure you don't miss anything, you'll certainly be happy to find them in the Doom Slayer's room. This den is absolutely packed with references and humorous features, displaying toys on shelves and weapons on a wall. An antique computer also installs Doom little by little as you find the cheating codes. Once you have collected all 14 codes, you can play the first classic DOOM from your room.
The records are on display all over the fortress, hanging on the walls like paintings. By inspecting them and then pressing the jump button, you can play the corresponding song. This includes music from the original Doom, Quake, and more. This allows you to set the mood in the base while you explore.