Poor game.
The bodies took far too long to pile up, took me ages to get past 3.8m.
The weapons got boring very fast, that's what made me give up.
The graphics were pretty shit to to be honest, just guys walking back and forth holding sticks for guns.
Being hit from off the screen was a real bitch, and then trying to avoid being hit whilst the enemies climbed to the top of the hill so you could attack them was really frustrating.
I couldn't stop the fucking character from jumping.
Also, seeing as I've played a game which is by far superior to this I'm going to have to give it a 2. This idea was interesting once, now it's just plain boring.
I'm not saying you copied it or whatever, just it's been done before.