Press ''enter'' in a game to open the chat box and type:

In this game, the difficulty of the monsters is normally based on the number of players in the game. When you have more players the monsters are tougher but give more experience, gold and item drops.

To get to the Secret Cow Level, you must have beaten the game on that difficulty, then go to the Rogue Encampment, take Wirt's Leg and a Tome of Town Portal into the Horadric Cube, transmute it and a portal to the Cow Level appears, there are hordes or cows here, be warned, once you kill the Cow King, you cannot go there again on that difficulty so you can go there 3 times, once on each difficulty if you kill him. However if you do not kill the Cow King, you can keep going there and get lots of items and gold.

NOTE: Works only for Necromancer. Go to the Bridge leading out of Kurast in Act III, and you should see a robed figure named the " Dark Wanderer". As soon as he walks for a bit, he teleports away and summons a few beasts to bash your skull. Right now, lead all of the monsters to the bridge, but summon any monster excluding a mage, and they should fight the enemies while you are still in the protection of the town. Your beast should fight the enemies, while the enemies themselves do nothing.