Its been my goal for awhile now to get the Zombie genocide achievement. Who did you find to be the hardest boss in this game? I always thought Cleatus was a challenge.

yeah, that achievement is pretty hard to get. I mean, yah...using the car in the parking garage is the way to go...but goddamn, if they barely give you enough time to accomplish this...

The guy in the hardware store always gave me problems...forgot his name.

Once you've got the right weapons and right level almost all bosses are easy.

That guy would be Cliff.

My hardest boss is Cleatus as well.

Sean, the cult leader, really pissed me off. But when I got the real Mega Buster all the bosses became pushovers. Also, Infinity mode is ridiculously hard, this is a brief outline of what it is:

In infinity mode, Frank is on his own. There is no help from other characters and everything that moves is an enemy. The psychopaths are now found throughout the plazas at certain times and some of the survivors that you have saved before are now enemies. All of the psychopaths and survivors will drop items via a cardboard box once Frank has defeated them. Move near the cardboard box and it will open and spew out its contents. Your healt also constantly drops

Awesome game nonetheless, but there's no way I'm going out of my way to get some of those crazy achievements

OMG, really? I did Zombie Genocider, Karate Champ, and Indoorsman all on one playthrough.

I don't know what to tell you if you can't do Zombie Genocider. I mean, I finished it with almost 12 hours left driving through the tunnels and went for Karate Champ out of boredom.

eh...call it ADD if you will....I'd get bored mowing over zombies over and over again that I would set my sights on some mayhem inside the mall.