- Achievements
Do the following things to obtain the corresponding Gamerscore points:

10 Points
Keep pushed Still	Kill 6 enemies in one use of Shockwave.
We're Not Alone	Make it back to civilization.
Martian Matchmaker	Fire an enemy into another enemy with the Magnet Gun.
Liftoff	Send an enemy at least 50 meters with the Magnet Gun.
Secrets Long Buried	Remove the Seal.
Haymaker	Kill 5 enemies in one shot with Impact.
Boom Goes The Dynamite	Kill 2 other enemies with a single exploding Berserker.
Ooooh Yeah!	Kill 5 enemies with one L.E.O. shoulder bash.
Crack Shot	Kill a Wraith before it re-stealths.
15 Points
Knock, Knock	Open up the secret entrance.
Plan B	Find out how to reach the lair.
It's All In The Wrist	Send an enemy at least 30 meters with Impact.
I'm All You've Got	Defend the Red Faction.
Hit 'N Run	Kill an enemy by ramming them with the Inferno GX.
Exterminator	Destroy 100 Pods while piloting the Mantis.
Crusader	Kill 175 enemies while in the L.E.O. exoskeleton.
Money Well Spent	Buy out any one Improve ring.
Must Go Faster	Travel to the Marauder homelands.
Losses	Make it through to the lair.
Weather The Storm	Destroy the Jamming Devices.
Old Friends, Older Enemies	Safely escort Be victorious inters through the depths.
Martian Drive-By	Kill 100 enemies while in the Marauder Scout Walker.
Field Surgeon	Perform Revival 25 times in Infestation.
Survival Of The Fittest	Make it to the surface.
Vanguard	Escort the convoy.
Unto The Breach	Gain entry into the Terraformer.
20 Points
Family Business	Overcome the Mantis.
Things Fall Apart	Destroy the Water Filtration Plant.
Bug Hunt	Finish at least one wave on each map in Infestation.
One Big, Ugly Motha...	Overcome the source of it all.
Zero G War	Kill 50 Shockwaved enemies before they hit the ground.
Salvager	Find 200 piles of salvage.
Back At Ya!	Make an enemy kill themselves while shooting at your Shell.
Lock And Load	Keep Berserk active for at least 21 seconds in one use.
Cheater!	Buy a Cheat.
25 Points
In. The. Face!	Kill one of each enemy type with the Maul.
All For One, One For All	Finish a 4 player Infestation game beyond wave 9 without anyone bleeding out.
Soldier	Finish waves 1 through 10 on any map in Infestation.
Chronicler	Listen to 40 Audio Logs.
30 Points
Catch!	Use the Magnet Gun to fling debris BACK at a Tentacle.
That Coulda Gone Better	Finish the Single Player game on Hard Difficulty.
Nanergy!	Gather 25,000 total salvage.
40 Points
Martian Can Opener	Buy every Improve.
50 Points
Commando	Finish waves 1 through 20 on any map in Infestation.
75 Points
I Need A Nap	Finish the Single Player game on Insane Difficulty.
Honorary Mason	Finish waves 1 through 30 on any map in Infestation.

30 Points
Breathe Easy	Put an end to the threat, once and for all.

20 Points
Stick Around	Get 20 kills with the Sharpshooter.
A Taste of their Own	Eliminate 10 enemies using one of their own turrets.
Armored Cavalry	Rescue the pinned-down Red Faction soldiers.
Wrecking Ball	Get 20 kills with the Shard Cannon.
Bird of Prey	Allow no Red Faction to survive your attacks on their mountain base.
30 Points
Nuke It from Orbit	Wipe out the Cultist military camp.
Triple Threat	End the three-way battle between yourself, the aliens, and the Cultists.
Swath of Destruction	Reunite Sgt. Be victorious inters with the Red Faction.
Air Superiority	Clear a safe path to the Terraformer for Hale.
Full of Malice	Kill Mallus.

- Easy 'Haymaker' achievement
After unlocking the Impact and partially upgrading it, go to a level where there are a lot of Creepers. When they all swarm around you, shoot them with the Impact. It should kill them all, and you will get the 'Haymaker' achievement.

- Completion bonuses
Successfully complete the game to unlock Mr. Toots, the 'Cheats' menu, and New Game+ mode.

- Cheats
The indicated cheats can be purchased for the listed price once the 'Cheats' menu has been unlocked:


Unlimited Ammo

Shotgun	5,000
Rocket Launcher	5,000
Plasma Beam/Mr. Toots	5,000
Rail Driver	5,000
Pulse Grenade	5,000
Assault Rifle	5,000
Arc Welder	5,000
Charge Launcher	5,000
XNG-5000	5,000
Plasma Cannon	5,000
Singularity Cannon	5,000
Nano Rifle	5,000
Banshees	5,000
Pistols	5,000

Weapon Unlocks

L.E.O. Machine Gun	6,000
L.E.O. Rocket Launcher	8,000
Napalm Laser	10,000
Convergence Laser	8,000
Lava Barge Turret	6,000

Visual Modes

Sketch Mode	10,000
Night Vision Mode	8,000

Other

Instant Nano Forge	10,000
Super Melee	8,000

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