Well for those that do not know how to find the seacret cow level here is how you can enter to that level. It's quite simple you will find cow leg on place where you rescue Decard Cain, after you kill the last one from Chaos order demos(memphisto, diablo, baal), go back to 1st act(rouge encampment) and buy a tome of town patrol(must be full 20 pieaces), place cow leg and that tome of town patrol ib horadric cube, transmute it and you will have open portal. Good luck!

This lvl is to good i played 3 time on every time i killed bail and on 8 players
xD when you see you know there are more coming behind it and if you are barbarian with low exp and you wanted there to gather some then just run for your life
I am playing with sorceress so it is easy for me cause i hit them and they are falling down or they just freeze

thx...guys....