Tomb Raider: Chronicles cheats, and Codes for DC.
Special Features option
Enter the inventory screen and highlight the "Timex-TMX" selection. Hold Y until "Secrets" reads "36/36". Quit the game and go to the Main Menu to find a "Special Features" option.
Skip directly to levels:
For each of these, make sure to hold buttons until levels complete loading.
Black Isle --
From the Main Menu, highlight the "New Game" option, then hold L + R and press Left to start at the Black Isle (Third Story).
Tower Block --
From the Main Menu, highlight the "New Game" option, then hold L + R and press Right to start at the Tower Block (Fourth Story).