Lately I've been playing Paper Mario Sticker Star, (Also, this isn't in games because this is not about the game, it's about the conspiracy surrounding a secret code found within the game) and have been enjoying it. Recently I got to world 5-1 where I was tasked with finding and catching three enemies that were holding items I needed to progress. One of these three enemies was found by digging though a dump-like trash area. In random areas in this dump you would be prompted to dig through the trash. Upon digging through the trash you will usually find a note, sometimes an enemy, and rarely the enemy you needed to find. These notes that you dig up have some funny and intriguing text, such as: "<mental note>", "Nothing's written on here. Whoa.", etc. But two notes really caught my eye:
"XD3R-B8HH-9ZR2-FL16" and "||||| ||||| ||||| ||"
The first message is clearly a code, my first inclination was to enter it into the 3DS eShop. When I came up with no results, I tried the Wii and Wii U eShops. Still no results. I scoured the internet trying to see if anyone had found out what this code was for; many theories, but no conclusive evidence.
Just now I thought that maybe the note with the lines on it had something to do with the note with the code. The only thing I could think of was that the lines indicated a cipher. Since there are four different sequences in both notes, I theorized that it could be a form of a Rotn cipher.
These are the possible ciphers I could think of:
1) Rot5 Rot5 Rot5 Rot2 ~This goes off of my counting each line in each quadrant and assigning the sum to the respective quadrant of the strange code.
2) -Rot5 -Rot5 -Rot5 -Rot2 ~The exact opposite of number one.
3) Rot17 ~This just is just all of the lines added together and assigned to all quadrants indiscriminately
4) -Rot17 ~The exact opposite of number 3
Since I wasn't sure whether or not I should include zero in the numbers area of rotation, there are eight resulting codes:
1a) CI8W-G3MM-4EW7-HN38
1b) CI8W-G4MM-5EW7-HN38
2a) SY2M-W3CC-4UM3-DJ14
2b) SY3M-W3CC-4UM4-DJ24
3a) OU0I-S5YY-6QI9-WC83
3b) OU2I-S7YY-8QI1-WC95
4a) GM4A-K9QQ-8IA5-OU61
4b) GM6A-K1QQ-9IA7-OU83
I have not, as of yet, tested any of these results, but I will begin testing them when I get the chance.
Please discuss other possibilities and theories.