Double Dipper (Season 1, Episode 7) Credits Code

Here's the code thingy for "Double Dipper". This was also the first episode for method #2. First off, the code letters read, "KZKVI QZN WRKKVI HZBH: 'ZFFTSDCJSTZWHZWFS!'" When decoded with method #2 (Atbash method), it says, "PAPER JAM DIPPER SAYS: AUUGHWXQHGADSADUH!'" because Paper Jam Dipper said a lot of nonsense during the episode.
Code: PAPER JAM DIPPER SAYS: "AUUGHWXQHGADSADUH!"
Method #2

Dipper vs. Manliness (Season 1, Episode 6) Credits Code

Here's the code thingy for "Dipper vs. Manliness". This was also the last episode for method #1. First off, the code letters read, "PU. FDHVDULDQ ZLOO EH RXW QHAW ZHHN. PU. DWEDVK ZLOO VXEVWLWXWH." When decoded with method #1 (Caesar method or Three Letters Back Rule), it says, "MR. CAESARAIN WILL BE OUT NEXT WEEK. MR. ATBASH WILL SUBSTITUTE." A lot were confused by this code, so here is what it means. "MR. CAESARAIN" was referring to the longer name for the Caesar method, Caesarain, and the "MR. ATBASH WILL SUBSTITUTE" part was meaning that method #2, Atbash method, was going to be in the next episode, Double Dipper.
Code: MR. CAESARAIN WILL BE OUT NEXT WEEK. MR. ABTASH WILL SUBSTITUTE.
Method #1

The Inconveniencing (Season 1, Episode 5) Credits Code

Here's the code thingy for "The Inconveniencing". First off, the code letters read, "RQZDUGV DRVKLPD!" When decoded with method #1 (Caesar method or Three Letters Back rule), it says "ONWARDS AOSHIMA!" because when Mabel ate the "Smile Dip" as a spoof on Fun Dip, she hallucinated a dolphin like creature she called, "Aoshima".
Code: ONWARDS AOSHIMA!
Method #1

Smiledip! I thought this stuff was banned from America!

The Hand That Rocks the Mabel (Season 1, Episode 4) Credits Code

Here's the code thingy for the episode, "The Hand That Rocks the Mabel". First off, the code letters read, "FDUOD, ZKB ZROW BRY FDOO PH?" When decoded with method #1 (Caesar method or Three Letters Back rule), it says, "CARLA WHY WONT YOU CALL ME?" It doesn't have an apostrophe for some reason in "WONT", but lets get to why is says that. A lot were confused with this code and you have to know something that was hidden in the episode to get the secret code in the credits. So at the end of 'Lil Gideon's commercial, (If you've already seen "The Hand That Rocks the Mabel" you probably already know this,) it says a bunch of words go really fast on the their TV. If you slow it down, the last sentence says, "Carla, I've always loved you but never had the guts to say it." (Carla was possibly one of the Gravity Falls worker's crushes in his teen/pre-teen years or childhood.)
There is a pic below for proof.

Code: CARLA, WHY WONT YOU CALL ME?
Method #1

Headhunters (Season 1, Episode 3) Credits Code

Okay here's how to do the code or whatever for "Headhunters". First off, the code letters read, "KH'V VWLOO LQ WKH YHQWV". When decoded with method #1 (Caesar method or Three Letters Back rule), it says, "HE'S STILL IN THE VENTS" because when Mabel got rid of all the wax figures and threw them in the fireplace, she forgot Wax Larry King's head and Wax Larry King in now hiding in the vents of the Mystery Shack.
Code:  HE'S STILL IN THE VENTS
Method #1

The Legend of the Gobblewonker (Season 1, Episode 2) Credits Code

Okay, first off, uh...you probably know about the credits codes by now...so, uh...let's get started! Okay, again, first off, again, the code letters read, "QHAW ZHHN: UHWXUQ WR EXWW LVODQG". When decoded with method #1 (Caesar method or Three Letters Back rule), it says, "NEXT WEEK: RETURN TO BUTT ISLAND" because when Mabel, Dipper, and Soos traveled to Scuttlebutt Island, Soos put his arm over the sign that said, "SCUTTLEBUTT ISLAND", but only put his arm over the part that said, "SCUTTLE", so it only said, "BUTT ISLAND".
Code: NEXT WEEK: RETURN TO BUTT ISLAND
Method #1

We're still beavers!

Ah! Bird!

Tourist Trapped (Season 1, Episode 1) Credits Code

This was the first episode of Gravity Falls. You probably know what the credits codes are by now if you've read my blog before, so...let's get started! Okay, first, the code letters are, "ZHOFRPH WR JUDYLWB IDOOV". If decoded with method #1 (Caesar method or Three Letters Back rule), it says, "WELCOME TO GRAVITY FALLS" because this episode was the first episode.
Code: WELCOME TO GRAVITY FALLS
Method #1