Nice little game
It's far from bad, I really like it, but it's kinda hard. Not exactly challenging, yet doable, but what bugs me is the zombies that rush at you from behind: you can't kill them if they are right next to you (maybe if you have the crowbar) so you have to do a perilous detour above or under him to get to him, but being already surrounded, it means death.
3 chances? Not much, if you want my point of view.
And when you die, it would be nice to have the option to change weapon, because if I pick up bad ones and die, I'm stuck with them forever.