Rules of the Arena :

Iron Golems - For the Iron Golems to win, they must destroy all the Zombies before the Zombies kill all the Villagers

Zombies - For the Zombies to win, They must kill all the Villagers before they die from the Iron Golem.

Additional Notes

All the nether slabs that you see in the pictures or in the actual game are not supposed to be there, in the 1.4.6 update, our main block is supposed to be Stone Slabs, the one without the line the middle of it. So if anyone can replace the Nether Slabs with (44 1 7 Slabs) then it'll be much appreciated!

If you want to see it how it was intended, download this 1.4.5 bin.

(1.4.5): www.mediafire.com/?6hdr2o7qomd2onw