Once you play the first level, you have experienced everything this game has to offer. The only thing you do in this game is run, as there is auto jump and auto climb, all you do is run left and right.
There are many bugs that are pretty game breaking, for example if there are any spiked walls parallel to you, you can just run inside them and hide and nothing happens. You also don’t take any damage if you run straight into a spiked wall. The zombies are also not a threat AT ALL. If you run straight, the zombies will catch up to you, but if you run just a slight bit diagonally, you suddenly become the Flash and can outrun the entire horde.
I wrote this review because I think this game has potential, but in its current state, I think it offers nothing. I actually preferred the previous version with guns and power ups, as it actually felt like i was doing SOMETHING worthwhile. With the only thing to do in this game is move left and right, without guns I think this game has no reason to be level based, and would work better as an endless runner instead.