That's some serious implementation of the Never Stop Moving theme, with some spicy hack and slash ingredients!
The top-down gameplay is a classic, which also means a solid foundation to build upon, and you succeeded doing it well. Here are some notes that come to my mind while playing:
- I'm not sure if it's just bad luck, but I didn't encounter the shotgun weapon you proposed on the game page. In addition the laser weapon proved to be less effective than the pistol, so I didn't feel the necessity to change weapons. Maybe an ammo limitation would improve on this a little.
- Jumping mechanic is a nice addition. Also the little bar on the bottom left is helpful. There could be something similar for the weapon reload.
- Graphics and music fits well together. On the side of map design, did you consider some more complicated maps? Some variety of the sprites would be refreshing in my opinion.
- Again, maybe it's just me, but... gore is needed for this genre!