Depending on your game version, there are multiple ways to activate cheat mode:

Method 1: Press ~ to display the console window. Type "setrandom sv_cheats 1" 
and press [Enter] to enable cheat mode.

Method 2: Display the console window and type "sv_cheats 1" (case- sensitive) 
and press [Enter]. You can also type "devmap [map name]" to load a specific map 
and have the cheats enabled once it has completed loading. Note: "sv_cheats 1" 
is write protected in the regular single player game. You need to load a map 
first by using the map or devmap command. For example, start the game, press ~, 
then type "map pra1" or "devmap pra1" at the console window and press [Enter]. 
When the map loads, enter "sv_cheats 1" and press [Enter] to enable cheat mode.

Method 3: Start the game with the "[drive and folder path]\SOF2\SoF2.EXE +set 
sv_cheats 1" command to enable cheat mode. Note: The next step involves editing 
a game file; create a backup copy of the file before proceeding. Use a text 
editor to edit the "myconfig.cfg" file in the "base" folder in the game folder. 
Search for the "toggleconsole" entry in the file. Bind any desired key to that 
command. For example:

bind X "toggleconsole" 
After cheat mode has been activated by using one of the previous methods, start 
the game, display the console window, then enter one of the following codes to 
activate the corresponding cheat function. Note: Cheats may have to be re-
activated after starting a new level.

Result| Cheat Code|
Toggle God mode |god 
Toggles no clipping mode |noclip 
All weapons and ammo |give all 
Spawn indicated item |give [item name] 
Armor |give armor 
Full ammunition for current weapons_ give ammo 
Health |give health 
Stamina |give stamina 
Infinite power |pinkspider 
Disable enemy AI| notarget 
Never get tired |nofatigue 
List console commands |cmdlist 
Display current map name |mapname 
List maps |dir maps 
Advance to indicated map |map, spdevmap or devmap [level name] 
Level select icon at main menu |raven 1 
Change gravity; 800 is default, set to 0 to fly |g_gravity [0-800] 
Change movement rate; 320 is defeault, lower is slower |g_speed [number] 
Change player's name |name [text] 
Toggle windowed and full screen; will restart game |toggle r_fullscreen 
Show current server settings |serverinfo 
Reconnect to last server |reconnect 
Commit suicide |kill 
Exit game |quit