Codes and passwords came into our lives along with the Internet and there is no escape from this until some other methods of encrypting access to important information begin to prevail. In the Odd Key game you are asked to use digital keys to test your powers of observation and reaction speed. You will receive a set of characters on the main field, and above on the horizontal panel a sample key. Your task is to find the extra symbol on the field and do this until the horizontal timeline below disappears completely in Odd Key!