In the final scene of the final chapter when Marduk needs to be defeated, I can't get my "magical" whip to work. Indy rears back and then stops his follow through. Any suggestions?
It's all about timing.
Climb on the platform of the "ruins" and use your charged whip when Marduk/Sophia is very close. At the time when he's hitting you and when your health goes down, then you have to push the control button...
Good luck..
BiK