Great
Its a great game all around. However, it could use more items and arenas. Maybe an unavoidable nuke that kills everyone, but appears rarely.
An arena could be the front page of NG, with a constantly changing arena as the mouse on there clicks on different links in the site.
It could also use some new characters.
Try Bitey or Dad n' Me.
Overall, a great game, needs some more variety.
That's the first creative level idea I've seen in a review. And it took 613 pages, haha.
Those two characters have been suggested a lot though. They'd be in there if we were adding more.
Has potential
The concept is good, a guy trying to defend a place.
However, it is not good as it is.
Try putting more features or common sense things, such as lives,selectable characters, level select, and tons of other improvements.
This is just the bare-bones, it needs WAY more improevement.
Great
It was a great game, same foundation, but new things.
But its a bit hard to aim, and you can get easily overwhelmed in the early levels.
Overall, Good, but needs improvements.
Amazing
This is one of the best games I have played so far.
Sounds like theres going to be a part 2 thanks to the cliffhanger at the end.
Maybe you should put multiple balls or points where gravity is localized, like planets
Male
Joined on 4/2/08
Newgrounds Rumble 
Rapid_Fire 
Boxhead The Zombie Wars 
Epsilon