Hey thanks for the feedback! I'm curious though, what in the game breaks the 64x64 rule? Is there a sprite that doesn't look pixel perfect somewhere?
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. :)