I liked the color scheme and art in general, and I'm not opposed to the idea of random sprites dispensing cryptic observations and wisdom in a game. But, that said, I have to echo some of the criticisms of earlier commenters:
The world is pretty samey throughout. Although the fallen-bridge lands provide some thematic difference from the under-lands, there is pretty much no difference in enemies and terrain challenges. In a way it's nice that you keep coming back to life, because I died probably dozens of times. But it's also unfortunate that you'd need to keep coming back to life, because as far as I can tell, there are neither strategic maneuvering, nor character growth means to prevent dying due to random lucky hits by the enemies.
The pause after falling seemed an odd choice (unless it's a bug), since it had no effect on either health or game progress. Is it just to provide a moment of being stunned for enemies to take a whack at you?
The boss also had me perplexed. After various attempts at jumping and maneuvering around the featureless plane during a few lethal sessions of plasma-burst badminton, I ran out of ideas on how to even begin to make a scratch on him.