Very cool idea! I appreciate the efforts in the visuals: adding the GMTK splash screen, different color themes, a visual tutorial...
As a piece of feedback I would say the tutorial is a tiny bit confusing/wordy, and I immediately lost the first few times. Controls could be a bit more intuitive, but good job overall!
If you can find the time, would you please check out our game as well?
Our twist of the theme is that a critic tries to play your unfinished game, and you fight from inside the computer to make him like it. Hope you'll like it!