*Note: on some computers the game won't install with antivirus software running, sorry :(
Every normal bolt may be used again, at least if you are brave enough to cross a zombie horde and pick it up… Speaking of which: Sometimes, zombies may carry useful items they will drop, like chemicals, which you can then combine with a normal bolt to craft a new explosive bolt. But beware… once dead (read: really dead) the zombies dissolve by releasing poisonous fumes for a while, so getting the loot might be dangerous.
If you’re lucky, you may even find some food to restore part of your health. If not, sooner or later, you will run out of energy and die, meaning it would be wise to escape the horde in time. But in the backyard level, a huge iron gate blocks your way to freedom. And guess who has the keycode in his pocket? That’s right… your lovely next-door zombie. So searching through the loot is important. Once the gate is open, you can escape and “win” the level. Of course you can stay and slay a few more… just for the points in the global highscore list. You can even try to find the keys to the waiting car…
More info: http://bitbeast-games.com/en/the-slurping-dead/