So you had the game finished?
No, because I still do not know if the game works properly after compilation on other platforms. I have provided the latest sources (with improved rendering)
in this post, but no one has yet provided information about whether everything works on Unixes or whether there are any problems yet. At the moment I am only sure that the game works properly on different Windows systems (XP, 7, 10).
Therefore, I am asking everyone who wants to help me to get the source and give feedback.
For the publication of this game, I had to adapt the code to the Unix and finish the final levels (because now the game has only a few short levels for test). I would like to do it well, taking care of every detail, so that this game would give a little joy.
So in fact you're the winner of the game contest, if my math is right... 6 months ago...
Although I wrote about this project
in this post, I did not publish the source code, because the work continued and at that time it could not even be compiled. So, in theory, I did not take part in this competition at all.

Is a good game you coded, This foreground-background I've seen in Sonic Mania I think has a part of a level like that. And in another sonic fan game had that too.
To test this appearance of levels and the ability to change the layer during the game, I was inspired by the
Limbo game. Only that this game has layers in the gray scale, and I added some colors to my game.
Please the next one use a library so it can run fullscreen, or even in android device 
The game supports full-screen mode and multi-screen environment. To enlarge or reduce the size of the window, just press few times the non-numeric
+ or
- key. You can also move the window between the screens with the mouse (left button), if the window is smaller than the screen.
The game has a lot of features, which is why I described all of them in the
readme.txt file, which I recommend to read.