One of commentors, Michael, has pointed out that the Zombieland App for the iPhone/cellphones has it’s own set of rules.
#2 Zipplock
#3 Double Tap
#5 Shoot first
#7 Incoming!
#8 Break it up
#9 With your bare hands
#10 Don’t swing low
#11 Use your feet
#13 Shake it off
#22 Opportunity knocks
#24 Use your thumbs
While these were likely invented by the game makers (certainly use your thumbs must be, though you wouldn’t get far without them!) perhaps they were given a spec from an uncut version of the film which contained a few of these for real.
Can anybody confirm these rules from the game?