On Indiana Jones and the staff of kings for DS how do you unlock cipher 7?

To unlock Cipher 7 in "Indiana Jones and the Staff of Kings" for the DS, you need to complete the game's story mode and then find all the hidden ciphers in the levels. Specifically, Cipher 7 is obtained by locating the hidden artifact in the game's "San Francisco" level. Once you've collected all the ciphers, you can access Cipher 7 in the menu. Make sure to thoroughly explore each level to ensure you gather all necessary items.