this is pretty good and kinda fun!, only 2 problems though, first i feel that the POV should be a little higher, and second (and this is for almost all 3D FPS games on newgrounds) please add a sensitivity slider because the aiming is hard when it's that sensitive, great little game though :)
edit: THIS IS SO MUCH BETTER NICE JOB!!!, you also added more enemy variants and mini bosses to make it less repetitive!!, the new sliders are also great!, great job on the update overall!, but i would also try to add some (maybe humming) sound to the enemies that you can hear if they get really close, because sometimes you would just be standing and out of no where get hit, so it would be really nice to get a clue if something is approaching about a second beforehand :), you could also add different sounds for the different kinds of enemies so you know whats coming, you should be able to hear them from about 1.7 squares away (based on the floor squares), also maybe add a little height to the character, it feels a little too close to the ground, and that about it!, oh and also THANK YOU for adding the pointer for the shooter it helped a ton, see you next update!