The Da Vinci Code

Cheat mode:
Choose the "Codes" selection at the "Options" menu. Then, enter one of the following codes to activate the corresponding cheat function.

God mode:
Enter Vitruvian Man as a code. Note: This must be used for both Robert and Sophie, as the game will end if either dies.
edivr.

Double health:
Enter Sacred Feminine as a code.

One hit fist kill:
Enter Phillips Exeter as a code.

One hit weapon kill:
Enter Royal Holloway as a code.

Level select:
Enter Clos Luce 1519 as a code.

All Visual Database entries unlocked:
Enter Apocrypha as a code.

All bonuses unlocked:
Enter Et in Arcadia ego as a code. This will unlock all levels (including the M0X Louvre level and the M0X Rosslyn level), all Visual Database entries, the music Orrery, all concept art in Rosslyn, all Louvre paintings that are displayed in the substitution puzzles, and all anagram puzzles in Rosslyn.

Hint: Mansion: Shed box:
The code for the box in the shed is 13, 21, 34.
anthony gervais.

Hint: Puzzles:

Puzzle 1: Rearrange the "OH LAME SAINT" into "THE MONA LISA".
brandon harrelson, Petrovich_aloysius, Travis Edwards, and anthony gervais.

Puzzle 2: The Mona Lisa code is "Da Vinci Painted those that knew between Bacchus and Uriel lies the clue".
Petrovich_aloysius.

Puzzle 3: The painting puzzle to get the dirt off is First Chitinase, then Dismutase, then Catalase.
Petrovich_aloysius.

Puzzle 4: The six statue puzzle is Venus in the middle, Jupiter on the top, to the right of that Mars, to the right of that, Aeneas, to the right of that Cupid, to the right of that Vulcan.
Petrovich_aloysius.

Puzzle 5: The floor safe puzzle is Sion across the middle.
Petrovich_aloysius.

Puzzle 6: The solution to the cryptogram puzzle in level 7 is "OUTDOORS THE GRACEFUL WATER YOU WILL SEE THROUGH DEDICATION YOU MUST FIND THE KEY"

Hint: "The Louvre Revisited" level puzzles:
After completing the game you can enter The Louvre and play "The Louvre Revisted" bonus level. The puzzles are on the paintings that represent each of the nine levels of the game.
Morten Andersen.

The Louvre Museum Painting: "YOU SHOULD NOT HAVE RUN MONSIEUR SAUNIERE NOW TELL ME WHERE IT IS"

St. Sulpice Painting: "THE SISTER MUST HAVE BEEN CALLING PRIORY MEMBERS WHEN SHE WAS ATTACKED"

Normandy Mansion Painting: "ITS THE PRINCESS SOPHIE KEY MY GRANDFATHER PROMISED ME"

Bank of Zurich Painting: "IT IS THE CRYPTEX THIS IS BASED OFF OF A DESIGN BY DA VINCI"

Chateau Villett Painting: "THE LEGEND OF THE HOLY GRAIL IS A LEGEND ABOUT ROYAL BLOOD"

Biggin Hill Airfield Painting: "SAUNIERE BROUGHT US TOGETHER TO FOLLOW THESE CLUES FOR A REASON"

Temple Church Painting: "SILAS TAKE THE KEYSTONE FROM MR LANGDON TEABING IS OUR HOSTAGE NOW"

Westminster Abbey Painting: "TEABING FELT THE TRUTH CRASHING DOWN ON HIM THE GRAIL WAS LOST TO HIM"

Rosslyn Chapel Painting: "THE QUEST FOR THE GRAIL IS THE QUEST FOR THE DIVINE IN EACH OF US"

Hint: "Rosslyn Chapel Revisited" level:
Successfully complete the game, then use the rotating solar system model that now appears where the globe was during the main game. You can play the music from the game. Examine the sun in the model for a full screen view of the solar system. Go to the room that had the trapdoor in the floor in the main game. Examine the table to see all of Leonardo Da Vinci's invention models that were featured in the main game. Use the trapdoor to go down to the lower room to see concept art.