I'm glad you liked it! As for the crash it wasn't actually one. That final sequence is meant to end with the game closing itself. I felt it was more impactful to have it suddenly close, so I'm sorry that the experience didn't come across like I intentioned.

Thank you! It's actually two shaders, one is the dithering shader, and another is an edge detection shader. The second shader is what gives objects that solid black outline to make them pop.