How do I kill Marduk, Ive tried to deflect his lightening with the mirror but just finish up getting killed lol.

i think nobody will help us...i am also at same stage like u...

running around the round hall where marduk waiting to finish us..

if u ve any clue...please let me know.

what do u think about some kind of metal spere hanging out from wall (at lower level ofthe hall?.
indy did show an action hand when pointing whip at it. but he nope, i dont think that work...

A good walk thru that will help is at- www.canofworms.com/game/indy) (http://www.canofworms.com/game/indy) -it gives a step by step of everything.
If you are using the mirror to fight him make sure you are facing him so the blast goes back and hits him.

just finished the game.

mirror is to reflect marduk's electrical blast.

next fight with marduk...indy will use his favorite whip . make sure to charge it (u will get a key to lower down a silver spere after kill 1st marduk).