Pretty good
This was pretty fun. At first I tought to myself, my god this better not be it, doesnt seem that great. But of course as I progressed it got better, faster enemies, upgrades. I just upgraded everything once and then finally decided to try out a mine because too many zombies were coming. So this is what I did not like, I planted the mine and whats the first thing you do when you plant it? Your run away right? well I ran and apparently I ran into the mine exploding myself and I quit. You should not have the mine damage you because I could not run anywhere else, I was cornered and did not know this mine can damage me.