What can I say except well done?
It's the best iteration on the "programming" gameplay I got to try this far, and that's thanks to the platforming elements (which are very well programmed and designed).
The level of polish is through the roof, everything is greatly executed and coherent (art, sound, animation, UI, etc...).
I also really liked when the instruction box went from 1D to 2D, it was a nice "OMG" moment^^
The only small critique I would have is the programming section start to feel a little tedious to setup after some time. I'm really talking interface/controls/keybindings there, not puzzle elements. Like I wished I could use the mouse to go faster at some point (but there might be more elegant solutions, to keep everything on the keyboard/controller). It's mostly an issue when the game start to throw bigger command grids to fill (oh, and also have an indication of what tile I'm modifying once I selected a tile)
If you plan on pushing the game further, maybe you could also maybe implement a point / timer system with a leaderboard? The first one could be tied to the number of instructions used, and the second to the clear speed of the level? To add some kind of replayability?
Oh, and a level editor also ^^
Ok, I guess you got my point, it's a really cool game, I loved it!
Cheers!