A way to cheat on advanced mapseasy achevements
To do this glitch you must enable the dev console put in svcheats 1 and use noclip any challenge and get to the end then turn noclip off svcheats 0 and saveload the file and GLITCH TASTIC you are closer to getting the achevement
ApertureSciencecom login
The graffiti in the game are clues for the ApertureSciencecom web site Go to the site and enter LOGIN as a command Enter CJOHNSON as a username and TIER3 as a password After logging in type HELP for a list of commands
Box head pictures
On the level where you get the companion cube after you run past the energy balls and are in the room with the three elevators there are two doors leading to a catcher and a platform that is pushed out of the wall Walk up to the platform that is pushed out Crouch behind it and walk through the opening On the left hand side are a group of pictures of people with boxes for heads and hearts around them
Cheat List
All commands are done via the console They must be enabled via the console option on shortcut or enabled through the ingame options under the Advanced section of Controls It is then accessed by pressing Note Most of these require svcheats to be set to 1
CodeEffectchangeportalgunlinkageid Replace with 0 1 2 or 3 This allows for separate sets of portals to be createdentcreateportalweightboxCreates a Weighted Storage Cube for your usefireenergyballFires an energy ball that can be used in solving puzzlessvportalplacementneverbump 1Selfexplanitorysvportalplacementneverfail 1Portals can be placed on almost any surfaceupgradeportalgunWill allow use of second portal placementNew Intro Screen
Beat the game
UnlockableHow to unlockCake Intro ScreenBeat Portal onceOverheating Xbox 360
Play the level where you face off with the laser guided robots Once you get past the first few robots you must start dropping the boxes on the robots heads so that they fall over In the little place that you find the first two boxes crouch and walk behind where the boxes were You will find a little room with odd music playing and graffiti on the walls that says things such as quotThe cake is a liarquot There also seems to be an Xbox 360 with a pot inside of it The Xbox 360 is overheating and boiling the water