Tough for me to play with a laptop trackpad when right clicking to fire the right hand gun locks my view until I do a left click, but It's a very interesting game because it forces me to consider every bullet and prioritise enemies beyond the one that's currently closest to me. Otherwise a bit simple as it stands, but I can easily see this being expanded upon as a lengthier, more in-depth horde-style shooter (if the inclination strikes you)!
Not really a fan of using Q and E to reload though, because with WASD for movement, it inevitably means I need to take one of my fingers away from those keys, which restricts how I'm able to move around if I want to reload.