Legacy Console Edition unused features

Note: For most of the unused features listed here an external inventory or NBT editor is required to obtain these in-game.

Command blocks
In Java Edition, the command block can not be obtained without using commands. In Legacy Console Edition however, they are completely unobtainable without inventory editing with an external editor. All three variants can be modded into the game, but none of them have any functionality. Oddly it has unused NBT data relating to executing commands and a tooltip stating "Used to execute commands." Also in terrain.png there are unused conditional mode textures for each variant of the command block.

Barrier
The barrier can also only be obtained via external inventory editing. It's an invisible block used to make solid boundaries, however they are not fully functional as they cast shadows like other normal blocks, making them somewhat visible. It has a tooltip simply stating "An invisible but solid block." Interestingly barriers were used in the Aquatic Update tutorial mode once and is also used in various Battlemode DLC maps.

debug_fourj_item
This mysterious item has the texture of a barrier, no display name and no tooltip hint. It can't be placed and has no actual use for anything. Although its ID suggests that it was used for debugging and testing purposes.

Minecart with command block
A minecart with a command block which also lacks any functionality. This only exists as an item, as placing it will result in a normal minecart being placed. The command block in the minecart cannot be modified via NBT editing and it has an unused tooltip stating "Used to execute commands on the move!"

Spectral arrow
Spectral arrows can be shot using a bow, however lack any functionality when hitting a player. It doesn't give the player the Glowing status effect which is also an unused feature of the Legacy Console Edition. The tooltip reads "Gives the victim a glowing outline that can be seen through blocks."

Bark wood
Wood is a block which has the log's side bark texture on all six sides and it can be chopped using an axe. It can be used as fuel in furnaces but is not flammable, as it is completely immune to fire. It cannot be used to craft planks though the tooltip states "Chopped using an axe, and can be crafted into planks or used as a fuel."

Old wooden slab


Before normal wooden slabs were added, there were other wooden slabs with stone properties, which means that they couldn't burn and needed to be broken with a pickaxe. These were however not removed.

Killer Bunny
The Killer Bunny a white rabbit with horizontal red eyes, which is hostile towards players. It can only be summoned by changing a rabbit's RabbitType tag to 99 and upon being modded into the game, it will be given the name "entity.KillerBunny.name". Its attack strength changes depending on the difficulty: it will deal points on easy,  points on normal and  points on hard mode.

Cavern testing area
In the Battlemode map Large Cavern there is an out-of-bounds area that can't be accessed without hacking. It seems to be a testing area used to test various aspects of the game in Battlemode. It consists of a chest, a minecart with chest, a furnace and crafting table, an item frame, an enchanting table and a dispenser along with a cauldron. There is also a sign with text that reads "11111". The chest is empty, however the furnace has a stack of gold ingots inside.

Cavern unseen structures
Also in the Large Cavern Battlemode map, there is an unseen village right beside the big opening of the cave and a obscure mossy stone brick structure which was likely going to be a part of the main battle arena.

Cove unseen caves
In the Large Cove map there is a lot of scenery that goes unused and unseen, the majority being caves. However, some can be seen without using mods, for example swimming out of the main arena through an one block gap at a waterfall.

Corrupted cave sounds
There are two unused corrupted cave sounds, these being cave1.binka and cave8.binka and were removed in a later update. Oddly, the non-corrupted versions that are used are stored in folders called "_fixed".

Warning: Loud!

cave1

cave8

Sound loops
Four audio loops existed in the game files once, but these were also removed in a later update.

waterfall (Warning: Loud!)

ocean

cave_chimes

birds_screaming_loop

Old explosion
The old explosion sound file still exists in the game files.

old_explosion

Duplicate crafting sound
A duplicate of the crafting failed sound.

btn_back

Structure block textures
In terrain.png there are unused textures which were going to be used for the structure block.

Structure void texture
Like the structure block textures, there is also an unused texture for the structure void in items.png.

Fire texture placeholder


The fire placeholder texture from as early as the beginning of the Legacy Console Edition still exists in the texture files today. It reads "FIRE TEX! HNST", which is short for "Fire texture! Honest!".

Villager particles
In particles.png there an unused particle of a villager's face.

Old tutorial screenshot


In the Chinese Mythology Mash-Up pack there is a low-quality screenshot from an old Tutorial world. This image is normally seen when completing the first part of the tutorial, however this image is from Xbox 360 Edition TU19.

Aquatic Update graphic


There exists an unused graphic featuring the artwork for the Aquatic Update. It's located in MCBREUpSell720.fui.

Team alliance icon


There was once a feature planned to allow alliances and teams in mini games, however this idea was scrapped. Leftover is this graphic along with some unused text regarding teams.

Minecraft icons


Inside almost every .fui file from the Legacy Console Edition there is a 64x64 Minecraft icon whose purpose is unknown. Such an icon is only sometimes seen as world icons. These icons are identical to the MinecraftIcon.png file and are also present in Mash-Up packs.

PS3 layout table


Found on the PlayStation 3 Edition is this graphic located in DebugUIMarketingGuide720.fui, and which seems to be some sort of layout table.

Glowing
To obtain the Glowing effect, the player's NBT data has to be edited using an editor. In other editions of the game this effect is obtained when hit by a spectral arrow, however that is not the case here as spectral arrows are non-functional in this edition, and so is the status effect itself.

Saturation
Saturation is non-functional in this edition and will not regenerate a player's hunger points. It can not last longer than a few ticks, even when the duration of the effect was made longer using a NBT editor.

Blindness
This unused effect impairs the players vision by surrounding them with a thick black fog, with only a few blocks being visible. It also prevents the player from sprinting and doing critical hits to mobs or players.

Health Boost
A non-functional status effect, which was intended to be used to increase a player's maximum health. It uses the absorption effect icon texture instead of its own.

Bad Luck
The direct opposite to the Luck status effect. It subtracts the effect level from the attribute.

Debug menu
In the Legacy Console Edition there is a debug menu that was probably used by the developers during development. It can currently only be accessed in Xbox 360 Edition TU1 and below.

Old tutorial world
In the game files there is a leftover world file of the TU46 tutorial world. It's located in \Tutorial\Tutorial.mcs.

DLC
There is some DLC which used to be purchasable but now can't be obtained without modding anymore, most of which are located in \CU\DLC\.