→ key 3 (DEF), press 2 times = E. Then key 5 again = K.
You will also receive an Enigma Machine from the hostage, which is essential for the next step of the puzzle. 2. How to Decode the Frequency
Rotate the physical dials on the extracted Enigma Machine to accurately align the letters and spell out the six-letter solution: .
. While most of his "challenges" involve smashing green trophies, his more elaborate schemes require Batman to use his detective skills to save innocent lives.