Thank you for your in-depth feedback. I am really glad you liked the style. (Good job on recognising the colours originating from the 4 gameboy ones). I worked hard to make the look and sound feel right, the music was made in Fruity Loops Studio using a NES VST and composed completely by me for this game.
Ah, thank you for pointing out that the game is not running smoothly. I didnt test it with Unity's profiler and I had no idea how well it ran on lower end hardware. The code is a little quick and messy, but I didnt expect it to slow down lower-end hardware. I'll look into this for the future.
Thank you for your review!