Jedi Knights:Mysteries of the Sith
Firstly hit 'T' to talk then type in these cheats as you see them here...

IAMGOD
All Force powers

DIEDIEDIE
All weapons

GIMMESTUFF
Full inventory

GAMEOVER
Level skip

STATUESQUE ON/OFF
Disable/enable AI

TRAINME
Force level power-up

FREEBIRD
Free fly mode

BOINGA ON/OFF
Invulnerability on/off

TRIXIE
Force power increase

CARTOGRAPHER
Show all map

GOSPEEDOGO ON/OFF
Slow motion on/off

QUICKZAP X, Y, Z
Warp to specified co-ordinates