I like the art style, it gives off a specific retro vibe that I'm particular to. :) I feel like the wrong way sign at the left was calling me out specifically. xD
The parallax is a bit odd, the background parallax moves faster than the midground, which is usually the opposte, and then there's elements behind that which move at the same rate as the midground.
It was a little confusing that I could walk through the spikes given the perspective of the environment around it, and I was met by a dragon looking thing right at the end of a spike trap. Had I stopped moving or went backwards the spike would've killed me, but had I kept moving the dragon would've killed me, so I died at no fault of my own. Unfair deaths are frustrating for your players.