This is my favorite so far. I'm a big fan of pixel look and this being both pixel-ish and 3d is awesome! Plus the gameplay is fun. I think a mouse click to attack would be a bit smoother...at least for me but that doesn't take away from the funNess.
Good game! Well done! If you post this game as open source I'd love to look at it. :)
Oh and if you get a bit of time, please review my entry as well.