First off, that title screen is gorgeous. The world-design is gorgeous. The scoring is eerie and totally draws you into the mood of the world. By the 2nd NPC I was already hooked into the story.
The dash is great once you get the feel of it. I did find some of the platforming a bit challenging because I kept overshooting the single-tile platforms though.
It is really polished, and its fun to play. You can feel the vision and the work that went into this. Well done!