Invincibility

Go to the start screen and hold down L1+R1. Then press Up, Up, Down, Up, X, Square, X, Square, X, Circle, Up, Down, Triange, Start.

Picture Gallery

Collect all 30 artifacts in the game to unlock the picture gallery.

Beat The Croc

Wait until the croc is on the far right of the room and have Indy swim towards the door to his left. Once you get through the gate, climb up the ledge to your immediate left. Hopefully, the croc is close-by. Have indy turn left and jump over the bridge. There is a lever to your right and a bunch of skulls to your left. Grab a skull and try and get the croc to swim under the gate where you are. Once he's in there, pull the lever and walla! The croc is captured. Jump back across the bridge and go up the stairs and begin find the lever... this lowers a bunch of cages which lead to some chains and *WOW* another lever! Do it again until you get to the last lever which opens the rock up.

Sunken City

Use the map (which is actually helpful for once). Swim around everywhere and when you reach the right place, a cutscene will take over.

Prague Help

Don't go the easy way into the castle. After you climb down the chain, go around the steps and look for a L shaped pipe that you can jump and and grab onto, and then shimmy along.

4th Clock Puzzle Solution

Put the astrological scales symbol at the top and then put both hands at 10:00

Jump Across The Bridge

Small, gentle hops do the trick. Don't run at it. Halfway across you will fall in anyway.

Getting Into The Castle

Use the remote charge on the circular well in the courtyard. Drop down and swim to a ledge.