Half-Life 2 - Episode Two
Cheatmode:
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Note: This procedure involves editing a game file; create a backup copy
of the file before proceeding. Use a text editor to edit the "ep2cfgconfig.cfg"
file in the game directory. Set the value of the "con_enable" line to "1".
Check the "toggleconsole" line to make sure it is bound to a key (default is `).
Press that key during game play to display the console window and
type sv_cheats 1 to enable cheat mode.
Then, enter one of the following codes to activate the cheat.
You can also display the debug menu by pressing [Shift] + 1.
Result Code
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Disable cheat mode - sv_cheats 0