How to Use Devmode Online in Halo CE

Open your Internet browser and type "Halomaps.org" in the URL bar. On the resulting page, click "Halo CE Maps" and a new page will load. Type "bitterbanana" into the "Quick Search" bar of this page and hit "Enter." Select "Halo CE Developer Mode by Bitterbanana" from the results page. Click the red "Download" text from the "Halo CE Developer Mode" page to download the HaloCEdev.zip file.

Right-click the downloaded .zip file and choose "Extract all." Open the extracted folder and click "haloCEdev" to run the program.

Right-click the Halo: CE.exe file and choose "create shortcut" and save it to your computer desktop. Right-click the shortcut Halo: CE file and click "Properties." In the field that reads "Target" enter "-windowed" at the end.

Run "Halo: CE Custom Edition." From the main menu choose "Multiplayer" and select "Internet." Under "Server Setup" choose "Start Game" to host an online game.

Press ALT+TAB to run "Halo: CE" in a background window. Press the "Page Up" button in the Halo Developer Mode program then double click the "Halo: CE" window to make it full-screen. Click the "Tilde" key above the tab key on your keyboard. This opens a dialog in the lower left corner of your screen called the console. Press "Backspace" twice to clear the console.

Input "cheat_deathless_player 1" into the console and hit the "Enter" key. The word "true" will appear in the console and you will now have infinite health. Input "cheat_bottomless_clip 1" for infinite ammo, and "cheat_super_jump 1" for lowered gravity.

Enter the cheats again, substituting a "0" for the "1" and hit "Enter" to disable the cheats.