I picked up the Wii version from Amazon a month or two back. For $10 they are worth a play through.
Boobs? Check.
Zombies? Check.
Blood? Check.
The game play is PS1 style 3-D adventure with boobs. Walk from room to room, clean out the hoard. Get blood on your boobs, go bezerk and kill more zombies.
If u appreciated the budget titles that came out at the end of the PS1 era from Agetec and others (things like Skydiving Extreme, Shooter, Tennis, and C-12) then you will enjoy this. Very straight forward, with few thrills. Clean, basic gaming with updated graphics--again very PS1 in gameplay style.
Did I mention boobs?