These Cheats are tested in Shadow Warrior Registered Version 1.2
Press 'T to activate cheat mode.Then enter the following code:  
SWCHAN -- Toggle god modeSWGHOST -- Toggle clipping mode (walk thru walls)
SWGIMME -- Gives you all itemsSWGREED -- Enable every cheat
SWLOC -- Display frame rate in upper-leftSWMAP -- Toggle automap
SWRES -- Change resolutionSWSTART -- Restart levelSWTREKxy -- Warp to new level
               (x) = episode 0=shareware, 1=1st Registered level, etc.
               (y) = levelCLEAR --  (?)CONFIG -- Display "help config" (?)
DUMPSOUNDS -- Save sounds to file named "dbg.foo"QUIT -- Quits game
SOUNDxyz -- Play sound file #(xyz)
SWTRIX -- Turn on bunny rockets w/ rocket launcher (weapon #5)
SWNAME -- Change your name in multiplayer game.SWWAVE --  (?)
WINPACHINKO -- Lets you win pachinko game and get an item