This breaks the 64x64 pixel rules a little, but the game looks good and is solid overall. Nice job! Game-over music was a nice touch.
Viewing post in Running With Scissors jam comments
It's the way the hero and backgrounds move (although the parallax scrolling looks very nice!). They're "too smooth", i.e. if you took a screenshot, the image wouldn't fit perfectly in a 64x64 grid of pixels, because boundaries are crossed & some cells would contain multiple colors. It's a minor thing! I still gave you 4/5 for Authenticity. :)