Why does almost everyone find defeating Jerec difficult?
It's quite easy, all you have to do is get him away from the opening to the health thingy that Jerec uses. Then lower his health till he runs towards the opening. Then all you have to do is run to the opening, block him and slash 'em up!
But that's not running through the level, shooting everything in sight, is it.
I've beat the game on hard once, ussaully when I play Jedi Knight I'm trying to relax, so I do it medium.
Cheats are completly uneeded unless I'm trying out a weapons patch, there's no use in going through the entire game just to see what the weapons do!