Nice looking game (and page also) with good premise, but some of the game mechanics need some reconsideration imo. The contrast between real-time movement of the muncher and turn-based movement of other elements, the randomness of muncher movement's length, the narrow pathways with monsters that you can't evade sometimes, lack of explanation on some of the gameplay elements, etc. make the game frustrating.
I think "Redungeon", a game made by nitrome with the same concept is a great example on how to improve the game.