Oni cheats and cheat codes for PC

Enable Cheat Mode
Regulary you need to complete the game first, to enable cheat mode.

If you want to enable cheat mode without completing the game, you need 
to do some hex editing. First locate the the "persist.dat" file in your 
installed game directory. Open the persist.dat file with a Hex Editor.
Note: Always make a backup copy before edit a game file. 

Go to location 0x44 and change the value there to 07.
Once that is done, save the file, then run the game.

While playing, press [F1] to display the menu and enter any of the 
following cheat codes:

Code - Result 
Enter "winlevel" - Win the current level 
Enter "touchofdeath" - Omnipotence 
Enter "thedayismine" - Enable Developer Mode 
Enter "superammo" - Super Ammunition Mode 
Enter "shapeshifter" - Change Characters (Press F8)
Enter "roughjustice" - Gatling Guns Mode 
Enter "reservoirdogs" - AI's Fight With Each Other 
Enter "munitionfrenzy" - Weapons Locker Created 
Enter "moonshadow" - Phase Cloak 
Enter "minime" - Mini size 
Enter "loselevel" - Lose Level 
Enter "liveforever" - Activate God Mode 
Enter "killmequick" - Unlock Ultra Mode 
Enter "glassworld" - Glass Furniture 
Enter "fistsoflegend" - Fists of Legend Mode 
Enter "fatloot" - Get Ammunition and Health 
Enter "elderrune" - Regeneration 
Enter "chenille" - Daodan Power Mode 
Enter "carousel" - Enable Slow Motion mode
Enter "canttouchthis" - Unstoppable 
Enter "bighead" - Giant Head
Enter "behemoth" - Unlock Godzilla Mode 

Developer Mode Cheat codes:
Type the "thedayismine" code, then hit ~ (tilde) to bring up the 
console window, then enter any of the codes bellow:

Effect - Code:
Unlock all doors - Enter "door_ignore_locks = 1"
Stop recording - Press [F10]
Start recording - Press [F9]
Show opponent logic - Press [Ctrl] + [Shift] + B
Show frame rate - Press [Crtl] + [Shift] + [Y]
Select any weapons - Press [F7]
Playback recording - Press [F11]
Kill all nearby AI - Enter "ai2_kill"
Enable/disable textures - Press [Ctrl] + [Shift] + S
Enable/disable slow motion - Press [Ctrl] + [Shift] + G
Deactivate ghost mode - Enter "chr_nocollision 0"
Change character - Press [F8]
Activate ghost mode - Enter "chr_nocollision 1"

Defeating the computer easily:
Run counter-clockwise around the room. Just run in a circle since 
Konoko can move faster than the laser beams.