* GameBreaker: You purchase weapons when you save up enough for them. However, there's nothing stopping you from skipping updating a few days and then buying the Holy Gun, which will erase everything onscreen instantly until the month is half-over. Then you can upgrade...
* [[GermansLoveDavidHasselhoff Japan Loves Twin Blades]]: This was the no. 1 most-downloaded app in Japan at one time.
* GoddamnedBats: By the time you get past day 20, ''everything.'' But helmeted zombies are the worst.
* ScrappyMechanic: Getting grappled by zombies plunges your health to nothing lickety-quick. It's also easy to accidentally get grappled if a zombie sneaks up on you. Incidentally, this only happens in the Xbox version. Thanks a lot, Press Start!