It's good, needs some work.
The key combinations are awful to me, why wouldn't you make "jump" be "W" if left and right are "A" and "D"?. The secondary weapon thing was weird on my fingers as well.
Needs some improvement on dialog, no offense but it is off in a lot of places.
Overall neat idea, but maybe speed the enemies up, background noise besides music, and possible make it to where you can set your own keys?