- Overcomeing Alien Troopers
Use the following trick to kill Alien Troopers without shooting. When the Alien Troopers jump in the air and levitate shortly doing nothing, they are about to charge at you, which may kill you in one hit. When they do this, move out of the way. When they charge and miss, there will be a moment where they are idle. Run up to them, grab, and throw them. This may be slightly difficult at certain angles. The moment you throw them they will die. Notice: This was done on the Easy difficulty setting.

- Trophies
Successfully complete one of the following tasks to get a trophy:

Bronze Trophies
Going Underground	Enter the mines.
Livin' Up To Your Name	Board the VTOL for extraction.
Enjoy The Fireworks	Destroy the cruiser.
Following Orders	Finish 3 Secondary Objectives.
You're On Your Own	Proceed to the mining complex.
This Is My Rifle	Customize a weapon to use all 5 modification points.
A Little Trouble Parking	Discover the fate of the Lusca's Call.
Close Encounter	Secure victory in the Battle of Lingshan.
It's On Like General Kyong	Overcome General Kyong.
Zoology	Pick up an animal.
Empty Platform	Secure the train station.
Pro-Aircraft	Destroy all AA guns around the harbor.
Knock-off Knockout	Kill an enemy Nanosuit soldier with a Strength punch.
Special Forces	Kill 200 enemies.
Tank Buster	Destroy 5 enemy tanks.
Easy Darlin'	Rescue the hostage.
Very Strange Readings	Infiltrate the excavation site.
One Careful Owner	Reach the end of 'Onslaught' in the tank you begined with.
Strickland Would Be Proud	Overcome the flight deck invader.
You Knew, Didn't You?	Regroup with Prophet upriver.
I'm Coming Home	Escape the mysterious structure under the mountain.
I'm A Marine, Son!	Help the marines evacuate.
Nano Ninja	Perform 5 consecutive kills without being spotted by an enemy.
Expedition Team	Escort Prophet to safety.
Something For Every Occasion	Use all weapon attachments.
Long Distance Relationship	Kill an enemy 200m away.
Catch This!	Kill 10 enemies by throwing an object at them.
Silver Trophies
Marathon Man	Speed sprint 3km.
Weapons Master	Perform a kill with every firearm.
Delta	Act II
No Fly Zone	Destroy 5 helicopters.
Choke Keep pushed	Kill 20 enemies with grab.
Delta	Act III
Without Question	Finish 6 Secondary Objectives.
Keen Observer	Tag 30 enemies using the binoculars.
Team Raptor	Kill 400 enemies.
Delta	Act I
Gold Trophies
Cool In A Crysis	Finish the game on Hard or Delta difficulty.
Perfect, Soldier!	Finish all Secondary Objectives.
Crysis Controlled	Finish the game on any difficulty.
Platinum Trophies
Platinum	Gain all available trophies for Crysis.

- Overcomeing KPA soldiers
When you attack while in Cloak mode, you instantly lose all your energy. Instead, activate Armor mode (not Strength mode as this takes up energy when you attack), quickly shoot a soldier in the head, then go back to Cloak mode. They will not see you, and you will still have all your energy (you may even gain 1 to 3%). While you are transitioning to Armor mode, you will have a few seconds where you are still invisible to the enemy, which allows you to adjust if you are sniping. Even if you reach your time limit where you are invisible after turning off Cloak mode, you can still shoot around and might get away with not being seen as they sometimes panic and move around too much to notice you. You can use this to stay in a stationary location the A.I. does not touch and easily take out a large group, such as the area directly below a watch tower.

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