This page contains Cheats for Half-Life organized by sections for Playstation 2. Half-Life is a Action Shooter First-Person game, made by Gearbox Software, released on Nov 11, 2001 and published by Sierra Entertainment. If you can't find a hint or secret in our list, then please check this page periodically for the latest updates.
At the cheat menu, press on of the following cheat codes:...From: 1scooter111
Press Triangle, Square, Left, Right, Circle, X, Up, Down at the cheat screen. Choose the "Extras" at the options screen to load new levels found from other discs, such as the Official US PlayStation Magazine Issue 57 (June 2002) demo disc. To get a bonus level in Decay, get one A in every section. The final level will then become availabl...From: Ivan
To enter the code you must have two controllers. p2_R3, p1_L3, p1_up, p1_up, p2_down, p2_down, p1_left, p1_right, p2_left, p2_right, p1_X, p1_O, START...From: hurtful
Buy a soda from the random soda machines. If you are impatient, shoot the soda machine....From: darthyoda
The Long Jump module can be used for more than moving between floating platforms. You can get extra height when you jump into a wall or other object. When you first get dumped in Gonarch's lair, to your right you may see white "plants" coming out of the ground. You can use these as stepping stones to get up on the raised area in the middl...From: mohretta
Do not waste precious pistol ammo on headcrabs. Use your crowbar, as it is more useful....From: adam605040
Use the following trick to save ammo for all guns other than pistol. Most creatures or persons can be killed with five or less direct shots of the pistol. Crabs: 2 shots or 1 crowbar hit Zombies: 4 shots Electric Aliens: 3 shots Trip Bomb: 1 shot Machinegun on stand: 5 shots Soldiers: 5 shots Dogs: 3 shots Spitters: 4 shots...From: My-Love
If you have a guard, get him close enough and he will take care of almost anything for you. The only time you ever need to fire is if the creature is close to the guard....From: bindasgamer
When you enter the room where the lasers are shooting out the walls, run through. There should be a Barney (security officer) on the floor. Watch carefully and you can see the laser go across and literally cut him in half....From: B.Costa
Enable the "Alien mode" code and start a new game. Go through the hall past the main security room and go straight instead of right. A short way down that hall is the man wearing the blue suit. Use your electric attack to break the window and jump in. If you try to attack the man with the blue suit, it will not work....From: Babykins
After the experiment goes awry, go get the crowbar and come back to the place where the scientist is performing CPR on the dead guard. If you smack the guard with your crowbar, he will talk. Approach a guard or scientist that tells you information about something. Use a gun that will kill them in one shot, such as the caliber pistol or the crossbow...From: LebRoSe
When you walk around, you will at some point encounter dead scientists, sitting with their back towards a wall. Crouch and then crawl toward the dead scientist. You will glide through him. Continue to walk until you reach the wall, then turn around. You can now see the way the developers have made the skins for eyes and mouth and everything else. Y...From: XMAN
When in decay mode and are playing both people, the second person is not invincible, even if you enable the "Invincibility" code....From: deathaj67
If you see a dead scientist, police guard...equip your crowbar and bash them..their bodies will be gone and you will see limbs...From: ManyFaces1999
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