Remember, if you missed something, you’re able to return to this mission at any time.
However, you gotta complete it to get to save all collectibles/secrets.
This chapter describes only locations and ways of getting the collectibles.
Mission walkthroughs are in aseparate chapter of this guide!
When you look at the rest of the map you will immediately notice the secret.
The Hellgrowth - part 2
By completing the story mission, you will enter a ruined building.
There is a note in one of the rooms.
All you have to do is jump over the hole in the floor and then collect the secret.
Jump on various objects of the environment to reach it.
There are damaged cabinets around this spot.
Just jump to the top floor and go to the end of the corridor.
Perks
You will find this secret at the end of corridor.
There are many skeletons and fleshy gibs lying near the collectible item.
Rune
You will find this rune at the end of one of the corridors.
There are many skeletons and fleshy gibs lying near the collectible item.
To get to it, you need a yellow access key.
You will acquire it by completing the story mission.
Crystal
You will reach this crystal by completing the story mission.
It’s inside the corridor, next to the passageway.
To the right of it you will find a note.
There’s a lot of steam in the background, so it can attract attention.
Sentinel Battery
You will find the battery near the toxic substance.
You’ll find that secret in the sewers.
Beware of the poisonous substance that can quickly reduce your health.
Automap Station
You’ll find the map right next to the heart chamber.
You’ll get to that secret during the story mission.
All you have to do is turn left and pick up the item before you go further.
It’s another secret that’s rather hard to miss.
All you have to do is turn left before going further and look at the rest of the building.
The battery is highlighted by blue color, so it attracts attention.
Runes
It’s another secret that’s rather hard to miss.
Get through the destroyed passageway and then head left.
you’re free to jump to the item from the wall.
All you have to do is enter the corridor and head right to the end of it.
After obtaining the blue key, get inside the monster, and then reach the climbing wall.
Proceed to the end of the corridor, go down two floors and there will you find the secret.
Remember to wear a suit that will protect you from toxins.
Weapon upgrade
Travelling right from the checkpoint, you’ll reach a narrow corridor.
The secret is at the very end of it.
Album - Doom III - Main Theme
Some dexterity is needed so that reach this album.
Stand on the balcony of a destroyed building and jump to the other side of the location.
To get there, you oughta use a spike which is marked in the screenshot above.
Remember that the spike is constantly turning.
you should probably jump at a right moment.
If you fall down, you have to repeat the whole sequence all over again.
There is a hole on one of the walls.
It is blocked by many bones.
You have to jump down, reset the pathway with your fists and jump inside.
That’s where you get the disk.
Extra life (1-up)
You’ll get to this extra life during a story mission.
All you have to do is jump to it by using objects in your surroundings.
You will find another extra life behind a poisonous waterfall.
But remember to replenish your suit first.
Otherwise, you may die.
it’s possible for you to’t come out alive of this.
You’ll die by falling down, but it’s possible for you to get an extra life.
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