So I think I messed up... (Shenmue I & II - Until December 22) - Solution Posted

Giveaway is finished now, so posting the solution:

The theme of this puzzle was all about reversal. I explained most of the steps in the hints I added back when I thought I had been too vague, but the problem was a mistake of mine... orz

There are various ways to reverse the stuff in the image, and you were supposed to do each to get to the solution:

• Reverse the image itself - this one I think was pretty obvious, you could flip it vertically and horizontally, or just turn it upside down, since the result is the same.
• Reverse the characters in the image
• Use the atbash cipher, which trades each letter of the alphabet with the one in the same position in a reversed alphabet (so A becomes Z, B becomes Y...). Do the same with the numbers (including 0!)

After reaching the solution, you'd get a group of numbers and letters, which would lead you to a simple jigidi puzzle. Zelgh's guide explains this, if you never saw a similar puzzle before, so I linked it to make the puzzle easier to understand.

So following the steps you'd go:

• 447GO89B
• B98OG744
• Y01LT255
• https://www.jigidi.com/jigsaw-puzzle/Y01LT255/Shenmue

I hope you liked the puzzle! I'll try to do it properly since the beginning if I try again :D

Puzzle post was the following:

First things first: I apologize. The original version of this puzzle had a wrong initial hint due to my carelessness when creating it. This made the puzzle unsolvable, even if the correct steps were taken. I'm really sorry, and I made it anew while carefully checking up that you do get to the place you're supposed to. Thankfully, there's still more than enough time for the giveaway, so I hope that if you're still interested in the game, you can give the puzzle a new try :D

Yeah, I messed it up.

I was trying to share some december goodness with all the people here, so I created a giveaway for Shenmue I & II (Level 1+), lasting until the 22nd of December, 4:00 PM CET (GMT +1).

Where's the giveaway, you ask? Well, that's kind of the problem. I stored it away so it wouldn't get lost, and took notes so I didn't forget. But I noticed I had written them in the opposite way, so I tried to reverse them. Yet somehow that didn't fix them, so I reversed them again. And since that didn't do the trick, I thought "third time's the charm" and tried reversing them once more.

Guess what, third time wasn't the charm. In the end, my notes became a mess and I can't fix them. But maybe someone else can decipher them, so I'll leave them here for anyone interested :) (look at image at the end of the message)

P.S.: I think the best thing to do to start is look at the notes from a different perspective. After that, a couple of things need to be done to return the notes to their original state. There'll be something to work with then.
P.P.S.: Zelgh's guide is your friend https://www.steamgifts.com/discussion/TLR8m/zelgh-magic-guide-to-basic-sg-puzzling-update-october-2017

Extra hints for those who need them:

First step: Reverse the image horizontally, then vertically. Or turn it upside down, it's the same.
Second step: Reverse the order
Third step: each single item in the image is encoded, consider that there are two types of items and each belongs to a particular list. There's info about ciphers in the puzzle guide, finding the code is easy if you consider the theme of the puzzle
Fourth step: use the solution to create a link... to another puzzle :P

View attached image.