The Snow Golems don't actually have pumpkin heads. They simply wear them as a helmet and their actual faces can be seen by standing in very close proximity to them so that you see through the pumpkin. Shears can be used to remove the pumpkin and cause one to drop it revealing its face, although the pumpkin cannot be put back on the Snow Golem.

There's a very rare chance that the "C" and "E" in the Minecraft logo will switch and instead show "Minceraft".

Emeralds were originally supposed to be rubies, but they were changed to emeralds due to Dinnerbone (Nathan Adams) being color-blind, making him not able to easily tell the difference between redstone ore and ruby ore.

The game was partly inspired by an earlier game by Notch called RubyDung. It was more of a Base-Building type game, like Dwarf Fortress. The old Cobblestone texture came from this game.

One achievement in Minecraft is called "The Lie", which includes making a cake. This is a nod to Portal's famous meme, "The Cake Is A Lie". Also, the achievement for entering the nether in the PC version is called "We Need To Go Deeper", which is a reference of the multi-layered dream based plot of "Inception".

Notch would always drop a red apple when killed in earlier versions of Minecraft.

"Herobrine Removed" has been added to a number changelogs. Herobrine is a character from a Minecraft "creepypasta" who looks exactly like the player, but has white eyes. It is said that Herobrine is Notch's dead brother, although Notch said himself that he does not have a dead brother. Herobrine never appeared in the game, and it's likely that this line being added to the changelogs is just a joke with the community.

Steve once had a beard, but it was removed in the beta update.

The in-game NPC Villagers, often referred to as Testificates, were originally planned to be Pigmen, much like the Nether mobs. (Except not undead.) They would have the standard player model like Zombies and Zombie Pigmen, but with a Pig's skin. The second Skin Pack for the Xbox 360 version contains a Pigman skin as a slight nod to this.

Originally, zombies used to drop feathers when killed. This was the result of Notch, the developer of Minecraft at the time, not knowing what zombies should drop.

The Creepers were based on a failed model of a pig. The length and the height of the pig model were accidentally inverted, resulting in a tall mid section with small legs.

When enchanting an item, the strange symbols used to describe the kind of enchantment is actually a direct usage of the Standard Galactic Alphabet from the Commander Keen series for DOS.

The texts respectively read "Well Played Internets You Are Good", "These Names Will Be Random And Confusing" and "Each Spell Costs Experience Levels" describing the function of the enchantment table.

Diamonds were originally called Emeralds. Because of the light blue color they had, Notch decided to change the name to diamonds. In the code of Minecraft, Diamonds were still referred to as emeralds until 1.3, which introduced the current item known as Emeralds.

Minecraft was originally called "Cave Game".

The Leather chain armor is a sprite from Indev (an older test version of Minecraft's Survival mode) 0.31's items.png armor. It never made it to the release versions.

In the TU12 world of the Xbox 360 version of the game, it's possible to find a pyramid. Inside is a tower of 4 gold blocks placed on an obsidian block. This is a reference to Rooster Teeth's series "Let's Play", where each week 7 guys play different challenges in Minecraft: Xbox 360 Edition to win a golden tower they call the "Tower of Pimps".

There are four unused paintings in the pocket edition. Information on who drew these paintings, and their purpose, is unknown.

If you name a Mob creature "Dinnerbone" or "Grumm" (using a name tag) the creature will flip upside-down. This is an Easter egg put into the game by the developers, Nathan "Dinnerbone" Adams and Erik "Grum" Broes.

Some of the paintings in the game are maps from the game Counter-Strike.

Five humanoid mobs which were available in the Indev version were later removed. However, they can be found in the files of earlier versions of the game. The mobs were Beast Boy which resembles the DC comics character of the same name, Black Steve, humans which resemble the default player's character (later renamed 'Monsters'), Rana who is a little girl with a frog hat, and a different human also named Steve.