Killing 1,000 Zombies takes time (35-40 minutes, to be exact).  But it sure is fun.  And it's one of the reasons I haven't actually beat Case: Zero yet.  by the time I get to the crazy mechanic, I've spent so much time goofing off I don't have the weapons to beat him.  And that's perfectly okay, because mowing through the zombie hordes with two chainsaws strapped to a canoe paddle makes me feel like the illegitimate lovechild of Darth Maul and Leatherface (all while wearing the apparently popular waitress uniform and a cowboy hat!).  Definitely brings back fond memories of the original Dead Rising (and even has a few "cameos" from the Mega Man universe in various stores).  It's enough fun that I completely forgot about Mafia II yesterday, and likely won't touch it today either, because it would cut into my zombie slaying time.  And I do want to say, "Nice touch, Capcom!", for having the zombies in the slot machine room so wrapped up in their machine that they're completely oblivious to me unless I interrupt their playtime.  All they needed was a stained wifebeater shirt and a wet cigarette hanging from their bottom lip and they'd look no different than those "trailer folk" you find at gas station slot machines.  All in all, Dead Rising 2: Case 0 is definitely worth the $5 price of admission!