When low on health, wait until you get to a checkpoint. Save the game and then Load the game. This will take you to your previous location with a full health bar. Also, if Lara is low on health after reaching a checkpoint, kill Lara to be taken to the previous checkpoint with a full health bar.
Unlock the following game developer commentaries by completing the corresponding chapters. Turn on the commentaries in the Options menu. Replay the chapters and find the newly available crystals in them to hear the commentaries:
COMMENTARY - CHAPTER Croft Manor commentaries - Croft Manor Egypt commentaries - Egypt chapters Greece commentaries - Greece chapters Lost Island commentaries - Lost Island chapters Peru commentaries - Peru chapters
Unlock the following costumes by performing the corresponding tasks:
COSTUME - HOW TO UNLOCK Camouflage - Collect the Relic from the Temple Of Khamoon. Catsuit - Collect the Relic from the Sanctuary Of The Scion. Classic - Collect the Relic from the Lost Valley. Croft Manor Sport - Collect the Athenian Owl Relic from Midas's Palace. Doppelganger - Collect the Relic from Natla's Mines. Golden - Collect the Griffin-Head Relic from Midas's Palace. Legend - Collect the Relic from the Mountain Caves. Scorched Natla - Collect all Relics. Swimsuit from Tomb Raider 2 (Maria Doria level) - Collect the Relic from the Great Pyramid.
Activate the following cheats by performing the corresponding tasks:
CHEAT OPTION - HOW TO UNLOCK All Weapons - Beat the four Greece Time Trials. Golden Shotgun - Beat the three Lost Island Time Trials. Infinite 50 Caliber Pistol Ammo - Beat the four Peru Time Trials. Infinate Breath - Beat the game on the Easy. Infinite Health - Beat the three Egyption Time Trials. Infinite Mini SMG Ammo - Beat the three Egyption Time Trials. Infinite Shotgun Ammo - Beat the four Greece Time Trials. Show Enemy Health - Beat the four Peru Time Trials. Silver Mini SMGs - Beat the three Lost Island Time Trials. Sunglasses - Beat the game on the Easy. Textureless Mode - Beat the game on the Easy.
Unlock the following Art Galleries by performing the corresponding tasks:
ARTWORK - HOW TO UNLOCK Atlantean Creatures - Beat the game. Box Art - Collect 67% of the Artifacts in Peru. Doppelganger - Collect 67% of the Artifacts in Lost City. Egypt - Collect 100% of the Artifacts in Egypt. Game Gallery - Collect 33% of the Artifacts in Greece. Greece - Collect 100% of the Artifacts in Greece. Items And Artifacts - Beat the game with 25% of the Relics. Kid - Collect 33% of the Artifacts in Egypt. Kold - Collect 67% of the Artifacts in Egypt. Lost City - Collect 33% of the Artifacts in Lost City. Natla - Collect 100% of the Artifacts in Lost City. Origins of Lara - Collect 33% of the Artifacts in Peru. Other Characters - Beat the game with 50% of the Artifacts. Peru - Collect 100% of the Artifacts in Peru. Pierre - Collect 67% of the Artifacts in Greece. Promotional Images - Collect 50% of the Artifacts in Croft Manor. TR:1 vs. TR:A Egypt - Collect 100% of the Relics in Egypt. TR:1 vs. TR:A Greece - Collect 100% of the Relics in Greece. TR:1 vs. TR:A Lost City - Collect 100% of the Relics in Lost City. TR:1 vs. TR:A Peru - Collect 100% of the Relics in Peru.
In the room after fighting the strange creature that mimics your every move, there are three horizontal crushers on both sides. Go to the side where the floor that has not collapsed. Pull the lever on that side (just to get the checkpoint), then take out a gun with and wait for the crushers to go back in. Now run and jump into the path of the crusher when it comes back out with the weapon still out. If timed correctly the impact will throw you into the ceiling with surprising results. Note: This may be somewhat difficult to do.
Unlock the following Movies by completing the corresponding chapters:
MOVIE - CHAPTER A Heated Interrogation - Peru A Tough Choice - Lost City Ambushed! - Egypt Arrival at Khamoon - Egypt Arrival at St. Francis' Folly - Greece Business Banter - Greece Croft Manor - Croft Manor Doppelganger Demise - Lost City Down But Not Out - Lost City Final Confrontation - Lost City Introducing Natla - Peru Island Arrival - Lost City Island Escape - Lost City Kold and Kid - Lost City Larson Dies - Lost City Late Night Reccoinsance - Peru Motorcycle Pursuit - Egypt Pierre's Demise - Greece Retrieving The Scion - Egypt Shadow Figures 1 - Greece Shadow Figures 2 - Greece The Awakening - Peru The Banishment Of Natla - Egypt The End Of The Line - Lost City The Power Of The Scion - Lost City The Tomb Of Qualopec - Peru The Tomb Of Tihocan - Greece Time to Leave - Lost City Unexpected Company - Peru Vilcabamba - Peru Wolf Attack - Peru