Indiana Jones and the Emperor's Tomb Q&A

i have a question i have tried the god mode cheat many times and im still not invincible am i entering it wrong and also do i hold l1 r1 at the same time or l1 first then r1 and do i enter it right when the screen come through the doors or when it says new gam...

how do i swing after being still on pc version of game?
(in regard to the dungeon in prague)
ike

I cant solve the first stage of the astrology puzzle