The game is bad.
-Generic platformer as all hell, there's nothing original in this game.
-There's no audio at all.
-The platforming is hard and precise. I'd prolly forgive it in a flash game made 20 years ago, but this is just bad and the movement/jumping is not that great compared to a game like Meat Boy, so this makes the gameplay really frustrating.
-The level design basically sucks too.
I'm still giving it 2 stars:
Despite being ugly, I also kinda like the graphics.
Also there's missing animations which doesn't bother me that much, older NG games were also a bit lazy. The zombies slide along the ground and there's no jump animation for the player.
EDIT: You completely missed the point, but whatever, the game is still stanky and I doubt it'd get more than an overall score of 3 stars.