Clear the mission "Welcome to the Movement" on Normal difficulty or higher

Clear the mission "Something's Gone Wrong" on Normal difficulty or higher

Clear the mission "Unfinished Business" on Normal difficulty or higher

Clear the mission "Assembling the Pieces" on Normal difficulty or higher

Clear the mission "Fears Don't Lie" on Normal difficulty or higher

Clear the mission "Everything We've Worked For" on Normal difficulty or higher

Clear the mission "From the Ether and Beyond" on Normal difficulty or higher

Clear the Mission "The Ultimate Power" on Normal difficulty or higher

You should use the default character and Original mode to unlock achievements

Destroy 91 objects in the mission "Welcome to the Movement"

Destroy 121 objects in the mission "Unfinished Business" - Mission Select mode is allowed

Get 30 kills in Survival mode, found under extra missions

Defeat Jov Leonov without taking any damage - Boss Fight mode is allowed

Beat the game in under 1 hours and 30 minutes - Alternative characters are allowed

Clear the mission "Welcome to the Movement" on Elite difficulty

Clear the mission "Something's Gone Wrong" on Elite difficulty

Clear the mission "Unfinished Business" on Elite difficulty

Clear the mission "Assembling the Pieces" on Elite difficulty

Clear the mission "Fears Don't Lie" on Elite difficulty

Clear the mission "Everything We've Worked For" on Elite difficulty

Clear the mission "From the Ether and Beyond" on Elite difficulty

Clear the mission "The Ultimate Power" on Elite difficulty

Get 10 headshots with the max zoom scope on the Sniper Rifle during the mission "Unfinished Business" without leaving the mission or load any save - Mission Select mode is allowed

Defeat Edgar Barret in round 1 without taking any damage - Boss Fight mode is allowed

Defeat Edgar Barret in round 2 without taking any damage - Boss Fight mode is allowed

Escape the explosion before the time reaches 1:50.00 in the mission "Something's Gone Wrong" - Mission Select mode is allowed

Defeat Nicolas Wrightson without taking any damage - Boss Fight mode is allowed

Defeat the General without using PSI Energy - Boss Fight mode is allowed

Collect 6 orbs in the boss battle against the General - Boss Fight mode is allowed

Play as Scorpion

Clear the mission "Welcome to the Movement" while collecting an Evil Garden Gnome

Clear the mission "Something's Gone Wrong" while collecting two Evil Garden Gnomes - Mission Select mode is allowed

Clear the mission "Unfinished Business" while collecting two Evil Garden Gnomes - Mission Select mode is allowed

Clear the mission "Assembling the Pieces" while collecting two Evil Garden Gnomes - Mission Select mode is allowed

Clear the mission "Fears Don't Lie" while collecting two Evil Garden Gnomes - Mission Select mode is allowed

Clear the mission "Everything We've Worked For" while collecting two Evil Garden Gnomes - Mission Select mode is allowed

Clear the mission "From the Ether and Beyond" while collecting an Evil Garden Gnome - Mission Select mode is allowed

Clear the mission "The Ultimate Power" while collecting an Evil Garden Gnome - Mission Select mode is allowed

Destroy the Fusion Machine during the battle of Marlena Kessler without taking any damage - Boss Fight mode is allowed

Watch the cutscene "Insider Information" during the mission "Unfinished Business" before 35 seconds has passed of the mission time - Mission Select mode is allowed

Clear the mission "Fears Don't Lie" in Dark mode with only the No Head cheat active