Nice style to the game and I enjoyed the intro and atmosphere of it.
I tried the puzzle several times, but the instructions were just too ambiguous for me, I thought I'd worked it out correctly several times - but it never worked. I didn't know if it was the sequence, or the deltas that was wrong - so it was really hard to work out which bit wasn't correct so I could go back and work it out again.
For example, the sequence could be interpreted as right->left/up->down, or up->down/right->left, clockwise, anti-clockwise - there's a lot of ways. Also the deltas could be the difference between the numbers given, or the sequence itself, or the reality code. Any one of these could be logically correct, but there are no clue to what method is actually correct, therefore without knowing what was wrong in the code, the only option is to go through all the possible countless combinations until you get it right, so it seems down to luck if you happen to pick the right.
I did enjoy the aesthetics of the game, and the style was great and I liked the fact you could teleport out of the main area - but that puzzle was way too ambiguous to work out...