Shorts

A series of Gravity Falls shorts were produced to air between Seasons 1 and 2, riding the momentum of the series' success.

Dipper's Guide to the Unexplained
Dipper's Guide to the Unexplained is the first series of shorts. They kicked off on October 14, 2013, with new shorts premiering everyday that week at 7:25pm EST.

The events of the shorts take place before "Gideon Rises," as Dipper still has 3|book 3.

Hidden page
At the end of every short there is a section of a page that is briefly flashed, revealing information like symbols and cryptograms. The sections merged makes one large symbol of an eye crossed out with an X. This symbol is mentioned in a text about secret societies that Dipper was researching.

Codes in red
There is a code used in the red numbers on each page. It can be translated by using the number in front of a right parentheses to indicate the Gravity Falls episode number and the numbers that follow it to indicate the letter number of the episode's decoded credits cryptogram. Brackets indicate the beginning and end of words.

Decoded, the message that is composed of red numbers from all the images that flash at the ending of each short combined is "I WAS SO BLIND. HE LIED TO ME. THE DARKNESS IS NEAR."

Cryptograms

 * In "Candy Monster," the cryptogram says "IURP WKH ILUVW XQWLO WKH ODVW VHDUFK WKH." Once decoded, it reads, "FROM THE FIRST UNTIL THE LAST SEARCH THE."


 * In "Lefty," the cryptogram says "WKHP DOO ZHOFRPH WR JUDYLWB IDOOV." Once decoded, it reads, "THEM ALL WELCOME TO GRAVITY FALLS."


 * In "Tooth," the cryptogram says "FRGHV RI FUHGLWV SDVW RQH PHDQV RQH VR VHDUFK." Once decoded, it reads, "CODES OF CREDITS PAST ONE MEANS ONE SO SEARCH."

If arranged correctly and read left-to-right, the cryptograms read "FROM THE FIRST UNTIL THE LAST SEARCH THE CODES OF CREDITS PAST ONE MEANS ONE SO SEARCH THEM ALL WELCOME TO GRAVITY FALLS."

Shorts 2
On December 26, 2013, an Unnamed Gravity Falls short came out on Disney Channel Russia.