Tips, Unlocks & Easter Eggs
Ultra-Nightmare, New Game+ and references.
Tips, unlocks and easter eggs for DOOM (2016).
1.Unlock Ultra-Nightmare Mode
For the Story Campaign this feature is available from the start, but to unlock it you must play through on any difficulty up to the end of 'Mission 6: Into the Fire'.
2.New Game Plus
Complete the Story Campaign once to unlock a 'New Game +'-like feature — finishing a mission gives a 'Continue' option, keeping all your upgrades on later playthroughs.
3.Easy 'Argent Fiend'
Progress to the final Boss, then quit and replay the missions to get the collectables.
4.Terminator 2 Easter Egg
In 'Mission 3: Meltdown' there's a Foundry with lava everywhere. Jump in and stay until you die and your Marine gives a thumbs up like the T-800 melting in the lava.
5.Hidden 'Super Turbo Turkey Puncher 3' Mini-Game
This mini-game from DOOM 3 is in the 'Advanced Research Complex' mission, in the MIXON hallway with grey storage blocks stacked in the corner.