Half-Life Cheats for Playstation 2

At the cheat menu, press on of the following cheat codes:...

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 Pla...

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...

Buy a soda from the random soda machines. If you are impatient, shoot the soda machine....

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 yo...

Do not waste precious pistol ammo on headcrabs. Use your crowbar, as it is more useful....

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 sh...

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....

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 lite...

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 su...

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 ...

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...

When in decay mode and are playing both people, the second person is not invincible, even if you enable the "Invincibility" code....

If you see a dead scientist, police guard...equip your crowbar and bash them..their bodies will be gone and you will see limbs...