I actually appreciate the mashup of various styles of enemies, it feels unique and original in a way that few other games dare try to emulate for fear of breaking the "norm" and I feel as though that is worth commending. I think this game has an exploration factor that I enjoyed compared to other styles of 2D Beat-Em-Up games, I didn't feel pigeon-holed into the combat to the point where I was unable to check out the level design. Using a somewhat top-down view definitely helped make this possible, good choice there. Excellent background music as well!
That being said, I feel there are some clear areas for improvement. First of all, I'm not sure when the enemies are being hit, if at all. An animation, sound effect, or enemy health bar indicating a successful attack would help a lot. Additionally, the real measure of how well I'm playing the game seems to be the amount of time that I am able to survive the onslaught of enemies, but I don't have any kind of indicator telling me how well I'm doing until I'm already dead! It would be nice to have some stats to keep track of during the game, like enemies slain or (if nothing else) how long I've currently been alive for. Finally, I noticed that at the end of the game when I die, the text on the screen will flip backwards/forwards depending on which direction my character is facing. A small thing really, but on my first play-through I thought the text was always backwards, which left me with a very silly first impression!
All in all: not bad! This game is playable and has multiple things going for it, giving it the potential to become something great if given the chance. :)