Something I was thinking (after the fact of course), is that while hunting zombies,a great feature might be to have a check box to "Recruit Friends", either on facebook, twitter, or from gmail/email (or custom) contacts before clicking the submit button.
"I've just slaughtered one of many Zombies stalking the web site of CoffeeCup.com. If you love professional grade web design software with free lifetime upgrade, and dislike Zombies roaming aroud without a leash, then join me in the hunt to rid the world, or just the CoffeeCup site of these evil pests.
Be the first to splat a Zombie, and your heroism will not go unrewarded"
Also wondering if there were any kind of stats on how many first zombies individuals took out? Now that I think about it, that might be hard to come up with, because once someone won, their second first found zombie would by default become another members first. LOL, maybe it's just more fun concentrating on the hunt,
So, Pretty decorative Easter Eggs, then Star Wars Eggs, now Zombies.... It only stands to reason you check out the good people at http://rabbids.uk.ubi.com/
and see about incorporating their unique characters into some sort of quest or hunt for your next big fun day. Or throw a (designed with Web Studio) creatures thingy, and see if members rise to the occasion to supply (even if secretly) some sprites to be found on the site at some time in the future.
Take care and thanks for the great visual page designer for my Zombie kill.
P.S. For those already owning software that might be given away as a prize, here's another idea I though of, (just now), LOL. I'd have hunted for the zombies even if there were no prizes, but maybe for the other folks who wouldn't, because they already own something, how about a stats incidental STATS credit in their profile or shown in their sig block on the forums?
VP of Software Development
Discovered: 11 Unique Eggs
Destroyed: 6 Zombies
Referred: 3 New Members