Select the Code Entry option at the Extras menu, then enter one of the following codes to activate the corresponding cheat function:

Infinite health
Enter 94677 as a code.

Infinite stealth
Enter 53467 as a code.

Infinite copper
Enter 23637 as a code.

Infinite Chi
Enter 24463 as a code.

Double damage
Enter 34743 as a code.

One-hit dishonor
Enter 54641 as a code.

All treasure maps
Enter 37437 as a code.

Character concept gallery
Enter 97831 as a code.