In game, click on one of your Troll Witch Doctor units many times. Eventually after many clicks, voices and sounds will start to be heard being very similar to the television show Iron Chef.

In the last mission of the Alliance campaign - Chapter 6 (Lord of Outland) - you can slay Diablo's The Butcher (an abomination) who drops an item called "wirt's other leg". This is a reference to Blizzard's own Diablo 2 item "Wirt's leg" which in turn is a reference to the boy Wirt from Diablo. The item itself is useless in The Frozen Throne.

To find the Penguin King you must first start mission 4 for the Scourge/undead. In The begining you will notice there is a fork in the road to your left. Take the most bottom path. After you have started going down the most bottom path continue to go to the left until you reach a tunnel ( which really isn't a tunnel because you can't go through it ). On the other side of the tunnel is the Penguin King. To get to the Penguin King go up till you are at the edge of the cliff that blocks you from the king. Then start trailing down the opposite side of which you came up the cliff to get to a patch trees. Make your way through the trees. Once you reach a certain point in the patch of trees the gates Leading to the Penguin King open and the Penguin King lays down a Ring of protection+4 for all of your hard work. Make your way into the area to grab the Item. ( Note: you could just put in the ''iseedeadpeople'' cheat with no quotes so you could see exactly where the King is )

Undead Mission 1

On the left side of the topmost town on Arthas' side of the map there is an opening in the trees big enough for one person. It's hidden by the branches and leaves. Through the path you'll find a shop that takes the form of a villiage boy named Timmy who sells Ice Shards to summon Ice Revenants.

This secret island is in Chapter 1: Rise Of The Naga in the Sentinel Campaign.

To find this secret island you have to go near the coast where the burning boats are and note the patch of land across the water. You then use Maiev's Blink skill to teleport her over to this island where you will engage with one of Illidan's Naga. Destroy the Naga (Using you Fan of Knives makes it a lot easier) and you will earn a Rune of Mana and a Tome of Strength.

In the Night Elf Chapter 4 (Wrath of the Betrayer), there are 4 secret areas that Maiev could go into using her blink ability.

The first one is below your base, just north east of the southernmost Naga base. It has a statue that looks like a keeper of the grove hero. The message ''Secret Area Found'' will show up if you correctly found it. The second one is at the center of the map. It has a large gate that can be destroyed, and you will battle an infernal there. This is also the only secret area where you can go to without using the blink ability. The third is a garden just east of the area where you finish the mission. It has a critter named ''Grank the Rat'' that cannot be destroyed. The last one is at the southwestern most part of the map. It has a level 1 pandaren at a platform with the message ''Pandaren drinking area'' appearing if you are at the correct place. The pandaren will leave, leaving behind a treasure box.

On the second level of the Night Elf campaign there is a secret area containing two tomes of intelligence and one tome of strength along with two mana runes. Just kill all the Makrura's in the top left hand corner of the map. Then to get the tomes use Maiev's blink ability to get on top of the wall at the northernmost part of the base. ''Secret Area Tomes of Ancients Discovered'' will flash up on the screen. Now just grab the tomes.