Use a portal to get onto the conveyor belt, then walk on it until a droid with a working laser beam appears.

Play through Chapter 5: The Escape until you reach the conveyor belts carrying droids to the incinerator. Once there, carry the radio up to the wall to get the 'Final Transmission' achievement. Use the launchers to get through the portal and into the room beyond the window with radio in hand. Once you get the radio, backtrack through the level, and place a portal on the pad across from the window. In Chapter 2, Test Chamber 6, carry a radio (which shows up in a clump of garbage after you hit a button) into a window above the chamber. The final three Vitrified Doors can be found in this area. Enter this door to find a secret hallway that leads to a dock (where you get the 'Ship Overboard' achievement). In the corner of this office is a cabinet with a door behind it. You can use a portal to get high above the Control Room and enter a small office. When Cave starts talking about testing on hobos, below one of the test spheres and a giant Aperture logo is a room marked 'CONTROL ROOM' in yellow lettering. Then, play through the level until you reach the 1971-era test facility. Listen to the audio that plays when you hit the buttons in front of each of the sealed doors. On one end of the chasm is a platform with three of the Vitrified Doors. You must use the elevator shaft as a gravity boost to get across a chasm. After flying through the Aperture logo, you will come to an area with a tall elevator. At the beginning of Chapter 6, you will have to penetrate the 1960s Aperture facility. In Chapter 6: The Fall, there are six sealed metal doors marked 'VITRIFIED' (Vitrified Doors) that have buttons in front of them that play unique audio clips of Cave speaking. Enter the new area to find four turrets singing a song. Jump over it, get the Refraction Cube, then use the laser to destroy that turret to open the grate. There is a turret inside a ventilation grate just past the elevator in Test Chamber 16. WCC Flag: Successfully complete 'High Five'. Successfully complete the indicated task to unlock the corresponding item for purchase at the store:Д«ionic Beanie: Successfully complete 'Lunacy'. Successfully complete the game to change the title screen. Set maximum speed obtainable from speed gel default is '800.0f' Set acceleration of the speed gel default is '500.0f' Set minimum speed in seconds Portal Gun is fired default is '0.20' Set minimum speed in seconds Portal Gun shoots when click is held default is '0.5' Then, type one of the following codes and press to activate the corresponding cheat function: Result Enter ' sv_cheats 1' to enable cheat mode. While playing the game, press ~ to display the console window. Enable the 'Allow Developers Console' option. At the main menu, select 'Options', then choose the 'Keyboard/Mouse' selection.

Postal 2 hidden achievements