Cool demo, I like the fusion of RPG top down with run and gun. Also really nice sprite work on some of the enemies, especially the motorcycle boss (she was supposed to teach you about just flying and shooting down, right...)
I can't wait until the cop stops being a cop. I also didn't use the roll very much though, or the high jump.
The one thing I wish is that people could get into the action a bit sooner, but the tutorial still wasn't very long. good stuff