This game is a very well done piece of art!
The graphics are very nice I loved the three characters especially the Jason incarnation you made, the music is also excellent, the controls and variety of weapons, gameplay is almost perfectly smooth and the walking speed is great with just a few things to notice if it may help.
The dogs can hit several times in a row and push your character around the screen, I'm not sure that's intended but it feels wierd getting manhandled by a dog also in the sewer section of the game, the riot armor zombies hit way too often and are dangerous for even Jason and his chainsaw if you get too close, and talking about Jason, his chainsaw has a limited amount of use, it's alot of ammo but it would be nice to see it reload or not have it end or maybe boost up the normal melee a bit.
And lastly, just a question.
What what is "UNCA.S." you know, below the health bar?
Loved the game, keep up the amazing work!