I preferred the aesthetics of your previous game, but this one's a lot of fun. My primary complaint is that there's no way to restart the game after dying -- I have to refresh the page. I also wish there were a way to gauge the strength of an enemy (both attack and life).
The game could benefit from some instructions. It took me two games to realize that map completion determined my starting life for the next level, and I'm still not sure if treasures do anything. Seems like there should be a score based on cumulative treasures, maybe with a bonus for exploration.