Doom (Xbox 360)

From GameWinners

Contents 1 Achievements 2 Unlockables 2.1 Secret Gamerpics 3 Video 3.1 Walkthrough 4 Hints 4.1 Using sounds to find monsters 4.2 Nightmare mode 4.3 Enemies 4.4 Enemies attack each other 4.5 Level 2: Secret room 4.6 Run faster 5 More...

Achievements

Complete the following achievements to unlock Xbox Live Gamerscore points.
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Neophyte (20 points): Complete any level.

Episode One (25 points): Complete Episode 1 on the "Hurt Me Plenty" or higher difficulty.

Episode Two (25 points): Complete Episode 2 on the "Hurt Me Plenty" or higher difficulty.

Episode Three (25 points): Complete Episode 3 on the "Hurt Me Plenty" or higher difficulty.

Episode Four (25 points): Complete Episode 4 on the "Hurt Me Plenty" or higher difficulty.

Rampage (35 points): Complete all levels on UltraViolent mode.

Nightmare (10 points): Win a Nightmare level in single player.

Rookie (10 points): Get 50 kills on Xbox Live.

Destroyer (10 points): Get 100 kills on Xbox Live.

Scout (5 points): Find a secret area of a map.

Hoarder (5 points): Find all items in level.

Clean Slate (5 points): Kill all monsters in a level on the "Hurt Me Plenty" or higher difficulty.

Unlockables

Secret Gamerpics

• Successfully complete any level under the Nightmare difficulty setting to unlock a Gamerpic of a demon.

• Get a 100% kill rating on a level under the "Hurt Me Plenty" or higher difficulty setting to unlock a Gamerpic of a Doom Marine.

Video

Walkthrough

Hints

Using sounds to find monsters

• Listen for weird sounds, like somebody breathing very hard during the game. Those sounds are the brown monsters that throw fireballs. When the sounds stop, that means you have killed them all. However, there still may be normal enemies with guns and shotguns or pig monsters.
  

• The snorting sounds in the game are coming from the pigs. Once the sounds stop, that means you have killed all the pigs.
  

Nightmare mode

Cheat codes cannot be used in nightmare mode. It is just like the regular game, except the monsters are stronger and harder to kill. Enemies will keep appearing non-stop on each level -- you have to try and get to the end before more appear.

Enemies

The descriptions of the various enemies in the game are as follows.

• Former Soldiers: They resemble your old friends, but now they just fire pistols at you. They drop clips for the chaingun and pistol when killed.
• Former Sergeants: Meaner and tougher. They carry shotguns and do more damage then soldiers. They drop shotguns when killed.
• Imp: This creature throws fireballs and takes more bullets to kill.
• Demon: Appear in most areas and can rip your head off if you are not careful. If you see more of them, use the chaingun.
• Cacodemon: These creatures are ugly and have one big mouth. If they see you, they will fire lightning balls from their mouth. Use your rockets.
• Mancubus: You have to use more then a chaingun to kill them. Use ammo with caution.
• Arachnotron: Fires plasma energy at you. Use your rifle.
• Spider Demon: The ultimate enemy. Has a super chaingun mounted on her body. Use your plasma rifle or rocket launcher.

Enemies attack each other

Enemies of different types do not have much respect for each other. If they accidentally shoot each other, they will turn on each other. If you have very little ammunition or health, this can be used to your advantage. Enemies of the same type (with the exception of any Former Human and Lost Souls) will not attack each other.
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Level 2: Secret room

Go to the dark section inside the red door area. Punch the wall behind the green armor at the back of the dark area. This will lead into a secret section.

Run faster

While running keep touching a wall to move faster.

More...

Strategy guides from GameFAQs