Prototype

A prototype is a preliminary version of a subject that is created before it is released. There have been prototypes of parts, themes, and minifigures.
== Prototype Pieces ==
=== Adventurers ===
RedPharaoh.png|Red Pharaoh Headdress
=== Atlantis ===
Keys.jpg|The red, yellow and blue Atlantis treasure keys
=== Belville ===
RedTed.png|A Red Teddy Bear piece
=== BIONICLE ===
Akakuproto.jpg|An early prototype of the Kanohi Akaku http://www.bzpower.com/forum/lofiversion/index.php?t106143.html
Proto akaku2.jpg|The physical version of the early Akaku prototype
proto akaku.jpg|Another prototype of the Akaku, next to the final version
proto hau.jpg|A prototype of the Kanohi Hau, next to the final version
proto kakama.jpg|A prototype of the Kanohi Kakama, next to the final version
proto kaukau.jpg|A prototype of the Kanohi Kaukau, next to the final version
Prototype vahki leg.jpg|A prototype Vahki leg in Transparent Brown
Tarix helmet.jpg|Tarix helmets in various colours
Strakk helmets.jpg|Strakk helmets in various colours
Prototype Strakk Helmet.jpg|One prototype Strakk helmet
Skrall swords.jpg|An ordinary Skrall sword, compared with one with a light blue middle and a blue and pearl light grey one
Skakdi skull.jpg|A prototype black Skakdi skull
Shadow Leeches.jpg|A variety of different-coloured Shadow Leeches
Prototype zamors.jpg|Prototype zamor spheres
Sahmad helmet.jpg|Sahmad/Perditus helmet in milky white
Redskrallhelmet.jpg|Red Skrall helmet
Prototypethornax.jpg|Prototype Thornax
Noblematatu.jpg|Dark Blue Noble Matatu
Mohtrekprototype.jpg|Black Kanohi Mohtrek with yellow shading
Mirus.jpg|Miru masks in various colours
Matatu.jpg|Speckled Great Matatu
Malumhelmet.jpg|Bright Light Orange Malum helmet
Malum claws.jpg|Light blue and Bright Light Orange Malum claws
Long pipes.jpg|Different-coloured Toa Mahri pipes
Krika legs.jpg|Prototype Krika legs
Krika helmet.jpg|Prototype Crast masks
Krahhkan.jpg|Prototype Kraahkan
Kanokadiskprotoype.jpg|A golden prototype Kanoka Disk
Prototype Kanoka Disks.png|Prototype Kanoka Disk and Disk of Time
Jetraxprototype.jpg|A silver shape-shifted Jutlin
Inika armour.jpg|Toa Inika chest armours
Hordika upper arms.jpg|Hordika upper arms in various colours
Haus.jpg|Prototype Hau masks
Haunuvas.jpg|Prototype Hau Nuva masks
Gresh shields.jpg|A light blue and white Gresh shield half and a dark silver one
Gresh helmets.jpg|Prototype Gresh helmets
Galimistika.jpg|Silver Adapted Kaukau Nuva
Carapar chestplate 2.jpg|Prototype Carapar/Mantax/Malum chestplates
Carapar chestplate.jpg|Prototype Carapar/Mantax/Malum chestplates
Bordakh staff.jpg|Reddish Bordakh staff
Bohrokkranaplate.jpg|Prototype Bohrok windscreen
Berix helmet.jpg|A mixture of prototype Berix helmets
Avohkiiprototype.jpg|Metallic Gold Avohkii
Avohkii08.jpg|Silver 2008 Takanuva's Avohkii
Av-Matoran arm.jpg|Prototype Av-Matoran arms
Assorted.jpg|A dark silver Pahrak shield, Onua claw, Toa Metru lower arm section, Kopaka Mata shield, Toa Metru lower leg section Visorak foot, Vahki lower leg section, Toa Mata arm and Toa Hordika leg
Antroz wings.jpg|Prototype Antroz wings
Antroz claws.jpg|Prototype Antroz claws
Prototype part 64307.jpg|Prototypes of Part:64307
Adaptedmirunuva.jpg|Dark Silver Vehicle-adapted Miru Nuva and Trans-Clear visor
Silvernokamahordika.jpg|A silver Nokama Hordika mask
Prototype Part 64303pb01.JPG|An Earth Green mask of Gelu's
Prototype Gelu Mask.jpg|Another prototype mask for 8988 Gelu
proto gatling.png|A prototype of an Elemental Blaster with the colours reversed
marbled19052.jpg|The Mask of Fire in trans-orange blended red in the middle
Prototype Lewa Nuva 2008 mask scetches 1.png|Sketches of 8686 Toa Lewa's mask
Prototype Lewa Nuva 2008 mask scetches 2.png|Sketches of 8686 Toa Lewa's mask
Prototype Pohatu propeller piece.png|Prototype sketch of 8687 Toa Pohatu's propeller piece
Prototype Bio 2008 mask scetch.png|Sketch of unknown BIONICLE 2008 mask
Prototype Vamprah mask sketches 1.png|Sketches of 8692 Vamprah's mask
Prototype Vamprah mask sketches 2.png|Sketches of 8692 Vamprah's mask
Prototype Bio Jetpacks.png|Prototype sketches of the Av-Matoran Jetpacks
=== Castle ===
Skele Horse Proto.png|The prototype of the skeletal horse, designed in the 1980s/1990s
7094 Dragon Proto.png|The prototype of the dragon that appeared in 7094 King's Castle Siege
OrangeGhost.png|A ghost shroud in bright light orange
BlackGhost.png|A black ghost shroud
RedGhost.png|A red ghost shroud
PartiallyColoredGhosts.png|Various ghost shrouds only partially coloured
TransGhost.png|A completely transparent ghost shroud
RedWizard.png|A red wizard hat
TransClearGreatSword.png|A transparent clear greatsword
RedCastleHelmet.png|A red helmet
YellowVisor.png|A yellow knight helmet visor
=== City ===
VariousBikeColors.jpg|Various prototype colours for bikes
VariousColoredTrees.png|Two prototype coloured trees beside a green one
=== DUPLO ===
MickeyProto.jpg|A prototype Mickey Mouse
=== Elves ===
ElvesProto1.jpg |A prototype of Skyra's hair 
ElvesProto2.jpg|A prototype of Naida Riverheart's hair
ElvesProto3.jpg|A prototype of Aira Whisperwind's hair
ElvesProto4.jpg|A prototype of Azari Firedancer's hair
ElvesProto5.jpg|A prototype of Naida's legs
=== Friends ===
FriendsProto1.jpg|A prototype of Mia's regular legs 
FriendsProto2.jpg|A prototype of Cookie
FriendsProto3.jpg|A prototype of Stephanie's ponytail
FriendsProto4.jpg|A prototype of Emma's jungle and lifeguard legs 
LimeSaddle.jpg|A prototype of the horse saddle, in green
=== Harry Potter ===
RedKrumHat.png|A Red variant of Viktor Krum's hat
RedHarryHair.png|A Red variant of Harry's hair
RedWerewolf.png|A Red variant of Professor Lupin's Werewolf head
=== Indiana Jones ===
* Dark Grey Idol
RedRevolver.png|A Red revolver
=== Legends of Chima ===
Proto Eris' Eagle (1).jpg|70003 Eris' Eagle Interceptor prototypes
Proto Eris' Eagle (2).jpg|Second prototype of Eris' Eagle Interceptor
Proto_Chi.jpg|A red prototype of the Chi piece
PrelimChimaCrocs.png|Preliminary Crocodiles
8386356750 57ccd052c7 o.jpg|Preliminary Gorillas and Eagle
121-Lion-options.jpg|A preliminary model of the lion vehicles included in 70006 Cragger's Command Ship
102-Croc-Boat.jpg|A prototype of the main model of 70006
=== LEGO Games ===
Source: 
090712_dice.jpg|The different prototypes for LEGO dice
090712 microfigs.jpg|Prototypes microfigures
=== Teenage Mutant Ninja Turtles ===
tmnt proto.png|Donatello's prototype head
=== The Lord of The Rings ===
Cave Troll Prototype.jpg|A prototype of the Cave Troll
=== Mars Mission ===
MarsMissionAlienLegs.png|Light Bluish Grey alien legs
=== Minifigures ===
CMFProto1.jpg |A prototype of Jungle Boy's chimp
CMFProto2.jpg |A prototype of Bumblebee Girl's headpiece 
CMFProto3.jpg |A prototype of Lady Cyclops's headpiece 
CMFProto4.jpg |A prototype of Monster Rocker's headpiece 
CMFProto5.jpg |A prototype of Fortune Teller's hair 
CMFProto6.jpg |A prototype of Tiger Woman's hair
CMFProto7.jpg |A prototype of Martin Prince's legs 
CMFProto8.jpg |A prototype of Lisa Simpson's legs
=== Nexo Knights ===
Nexo-Proto1.jpg|Various shield prototypes 
NexoProto2.jpg|Prototypes for Clay
NexoProto3.jpg|Prototypes for the robots 
NexoProto4.jpg|Prototype for the sword
NexoProto5.jpg|Prototypes for the wheels
NexoProto6.jpg|Prototypes for Axl
NexoProto7.jpg|Prototypes for the wall 
=== Pirates ===
RedTricorne.png|A Red Tricorne
RedConquistador.png|A Red Conquistador helmet
RedIslanders.png|A Red Islander hair piece
=== Power Miners ===
Rock Part Proto.png|A prototype for the Crystal King's rock pieces
Rock Part Proto 2.png|Another prototype for the Crystal King's Rock Pieces
Drill & Wheel Proto.png|Old drill and wheel prototypes
Drill & Wheel Proto 2.png|More recent drill and wheel prototypes
=== Prince of Persia ===
Ostrich Proto.png|An ostrich prototype
Camel Prototype.png|A prototype version of the camel
=== Space Police III ===
Snake_Helmet.jpg|Helmet design for Snake
Slizer Helmet.jpg|Helmet design for Slizer
=== Spider-Man ===
RedGoblin.png|A red variant of Part:x225
=== Star Wars ===
Red_vader.jpg|Red Darth Vader helmet
WampaPrototype.jpg|Prototype Wampa
Tauntaun Proto.png|Prototype Tauntaun
SuperBattleDroidPrototype.png|A red variant of Part:x389
RedScoutHelmet.png|A Red Scout Trooper helmet
RedJangoHelmet.png|A Red Part:x50
GreenJangoHelmet.png|A Green Part:x50
RedDroidLegs.png|Red Droid Legs
RedDroidTorso.png|Red Droid Torso (Pictured with Red Droid Legs)
=== The Simpsons ===
File:BARTHEAD.png|A Prototype Bart Simpson head before being scanned and resized.
File:PROTOTYPENED.png| A Prototype Ned Flanders head.
File:PROTOTYPEHOMER.png|A set of prototype Homer Simpson heads.
File:PROTOTYPEDLisa.png|A set of prototype Maggie Simpson heads.
=== Studios ===
RedVampireHair.png|Red Vampire Hair
WhiteVampireHair.png|White Vampire Hair
=== Toy Story ===
Woody Head Proto.png|A prototype of Woody's head
Jessie Head Proto.png|A prototype of Jessie's head
Stinky Pete Head Proto.png|A prototype of Stinky Pete's head
LGM Head Proto.png|A prototype of the Alien's head
=== Unspecified ===
Corrugated2x4.png|A 2x4 transparent brick with a corrugated surface
PrototypeLeafColors.png|Prototype leaf colours
TransClearLeaves.png|A Completely Trans Clear leaf piece
RedChainWithout1Hole.jpg|A Red chain missing a hole
TransDarkBlueChain.jpg|A Trans Dark Blue chain
TransBlueMinifigBackPiece1.png|A Trans Light Blue Part:42446
TransClearSpear.png|A Trans Clear Spear
PrototypeStemColors.png|Prototype stem colours
=== Western ===
Unreleased.jpg|Bison prototype
RedChiefHeadpiece.png|A Red Chief Headdress
== Prototype sets ==
=== Alien Conquest ===
ACprotojet.jpg|Prototype 7067 Jet-Copter Encounter
ACprototank.jpg|Prototype Alien Conquest tank
Commanderprelim.png|A prototype of the Alien Commander
=== Atlantis ===
8075 Prototype.png|Prototype 8075 Neptune Carrier
8079 Prototype.png|Prototype animal from 8079 Shadow Snapper
=== Aqua Raiders ===
7771 Prototype.jpg|A prototype of 7771 Angler Ambush
7770 Prototype.jpg|A prototype of 7770 Deep Sea Treasure Hunter
7775-Prototype.jpg|Prototype of 7775 Aquabase Invasion
=== BIONICLE ===
Source: BZPower.com, German BIONICLE Magazine, Brickshelf, LEGO.com, Faber Files
<youtube>AjbiNuEv60c</youtube>
A video by Christian Faber showcasing numerous prototypes that would later become the first wave of BIONICLE sets.
proto pohatu.jpg|Early prototype of 8531 Pohatu, when BIONICLE was still Bone-Heads of Voodoo Island
proto manas.jpg|Prototype of 8539 Manashttp://www.bzpower.com/forum/lofiversion/index.php?t106143.html
proto pahrak.jpg|Prototype of 8560 Pahrak
proto nuhvok.jpg|Prototype of 8561 Nuhvok
proto gahlok.jpg|Prototype of 8562 Gahlok
prototypenuva1.jpg|Prototypes of three of the Toa Nuva
prototypenuva2.jpg|Prototypes of three of the Toa Nuva
proto boxor.jpg|Prototype of 8556 Boxor, with a Ta-Matoran instead of Nuparu
proto rahkshi.jpg|Prototype Rahkshi with grey feet
proto rahkshi 2.jpg|Prototype Rahkshi with grey feet
proto jaller.jpg|Prototype of Jaller as he would appear in 8594 Jaller and Gukko
proto gukko.jpg|Prototype of the Gukko from the same set
proto pewku.jpg|Prototype of 8595 Takua and Pewku
proto takanuva.jpg|Prototype of 8596 Takanuva
proto teridax.jpg|Prototype of 8593 Makuta, with silver armour
proto metru nui.jpg|Prototypes of the Toa Metru and 8623 Krekka
proto vakama.jpg|Prototype of 8601 Toa Vakama
proto matau.jpg|Prototype of 8605 Toa Matau
proto onewa art.jpg|Concept art for 8604 Toa Onewa
proto matau art.jpg|Concept art for 8605 Toa Matau
proto nuhrii.jpg|Prototype of 8607 Nuhrii, with a Miru instead of a Ruru
proto nuhrii 2.jpg|Prototype of Nuhrii from a later stage, with a fully red Ruru instead of a blended silver one
proto vhisola.jpg|Prototype of 8608 Vhisola
proto tehutti.jpg|Prototype of 8609 Tehutti
proto ahkmou.jpg|Prototype of 8610 Ahkmou
proto orkahm.jpg|Prototype of 8611 Orkahm
proto ehrye.jpg|Prototype of 8612 Ehrye
proto kikanalo.jpg|Prototype of the Kikanalo
Visorakp.jpg|A very early Visorak prototype
Hordikap.jpg|A very early Toa Hordika prototype
proto rahaga.jpg|A very early Rahaga prototype
proto keetongu.jpg|A very early prototype of 8755 Keetongu
proto toa hordika.jpg|Prototype Toa Hordika from a later stage
proto vakama can.jpg|Prototype of 8736 Toa Hordika Vakama
proto whenua can.jpg|Prototype of 8738 Toa Hordika Whenua
proto nuju hordika.jpg|Prototype of 8741 Toa Hordika Nuju
proto roodaka.jpg|Prototype of 8761 Roodaka
proto sentrakh.jpg|Prototype of Sentrakh
8757 Prototype Version.jpg|Prototype of 8757 Visorak Battle Ram
8758 Prototype Version.jpg|Prototype of 8758 Tower of Toa
8759 Prototype Version.jpg|Prototype of 8759 Battle of Metru Nui
Hakannproto.jpg|Prototype box of 8901 Hakann http://www.brickshelf.com/cgi-bin/gallery.cgi?f=182546
proto reidak.jpg|Prototype of 8900 Reidak
proto vezok.jpg|Prototype of 8902 Vezok
proto zaktan.jpg|Prototype of 8903 Zaktan
proto avak.jpg|Prototype of 8904 Avak
proto thok.jpg|Prototype of 8905 Thok
Prototype Jaller Inika.png|Prototype of 8727 Toa Jaller
Prototype Hahli Inika.png|Prototype of 8728 Toa Hahli
Prototype Nuparu Inika.png|Prototype of 8729 Toa Nuparu
Prototype Hewkii Inika.png|Prototype of 8730 Toa Hewkii
Prototype Inika.png|Prototype of 8731 Toa Kongu
Prototype-toa-inika-1.jpg|Prototypes of all the Toa Inika
proto jaller inika.jpg|Prototype of Toa Jaller's canister
proto hahli inika.jpg|Prototype of Toa Hahli's canister
proto nuparu inika.jpg|Prototype of Toa Nuparu's canister
proto hewkii inika.jpg|Prototype of Toa Hewkii's canister
proto matoro inika.jpg|Prototype of Toa Matoro's canister
proto kongu inika.jpg|Prototype of Toa Kongu's canister
Baltaproto.jpg|Prototype box of 8725 Baltahttp://www.brickshelf.com/cgi-bin/gallery.cgi?f=182546
Axonnproto.jpg|Prototype box of 8733 Axonn http://www.brickshelf.com/cgi-bin/gallery.cgi?f=182546
Brutakaproto.jpg|Prototype box of 8734 Brutakahttp://www.brickshelf.com/cgi-bin/gallery.cgi?f=182546
proto kalmah poster.jpg|Prototype of 8917 Kalmah
proto mantax.jpg|Prototype of 8919 Mantax
Chirox Prototype.png|Prototype of 8693 Chirox
Kopaka Solek 2008 Prototype.png|Prototype of 8945 Solek and 8685 Toa Kopaka
proto.jpg|Comparison between prototype Kopaka (right) and finalized set
Pohatu 2008 Prototype.png|Prototype (left) and the final set 8687 Toa Pohatu
Prototype Vamprah white.png|Prototype of 8692 Vamprah
Toaignikap.jpg|Prototype of 8697 Toa Ignika
Prototype early Gali Mistika.png|Prototype of 8688 Toa Gali
Prototype early Krika 1.png|Prototype of 8694 Krika
Prototype early Krika 2.png|Prototype (left) and final set 8694 Krika
Prototype early Bitil 1.png|Prototype of 8696 Bitil
Prototype early Bitil 2.png|Prototype (right) and the final set 8696 Bitil
proto toa mistika.jpg|The prototype boxes of the Toa Mistika
proto makuta mistika.jpg|The prototype boxes of the Makuta Mistika
proto takanuva box.jpg|Prototype of 8699 Takanuva's box
proto vultraz.jpg|Prototype of 8698 Vultraz's box
proto rockoh.jpg|Prototype of 8941 Rockoh T3's box, on which Pohatu has a silver visor
proto jetrax.jpg|Prototype of 8942 Jetrax T6's box
proto axalara.jpg|Prototype of 8943 Axalara T9's box, on which Lewa has a silver visor
proto skrall.jpg|Prototype of 8978 Skrall with a Zamor Launcher
proto malum.jpg|Prototype of 8979 Malum with a Zamor Launcher
proto gresh.jpg|Prototype of 8980 Gresh with different legs, colours and a Zamor Launcher
proto tarix.jpg|Prototype of 8981 Tarix with a Zamor Launcher
proto strakk.jpg|Prototype of 8982 Strakk with a Zamor Launcher
proto vorox.jpg|Prototype of 8983 Vorox with a Zamor Launcher
proto atakus.jpg|Prototype of 8972 Atakus with green eyes and blue blades
proto raanu.jpg|Prototype of 8973 Raanu
proto tarduk.jpg|Prototype of 8974 Tarduk
proto berix.jpg|Prototype of 8975 Berix
proto metus.jpg|Prototype of 8976 Metus
proto zesk.jpg|Prototype of 8977 Zesk
proto fero and skirmix.jpg|Prototype of 8990 Fero and Skirmix with a Zamor Launcher
proto tuma.jpg|Prototype of 8991 Tuma with a Zamor Launcher
proto stars.png|Prototype BIONICLE Stars. Tahu has a different shield and Nektann has Vezok's Water Harpoon
=== Castle ===
Original Dwarfs Mine.png|The original Dwarfs' mine created by LEGO in the 1980s. It was never seen by the designer of the 2008 Dwarfs mine
Loch Ness Proto.png|A prototype Castle set based on the idea of the Loch Ness Monster
Castle Proto U.png|An old prototype castle
Medieval Village Proto.png|An old medieval village prototype
Medieval Village Proto 2.png|Another old medieval village prototype
=== Castle (2007) ===
7036 Proto.png|The original prototype of 7036 Dwarves' Mine
7036 Proto 2.png|The second prototype of the set
7094 Proto.png|The original prototype of 7094 King's Castle Siege
7094 Proto 2.png|The second prototype of the set
7099 Prototype.png|The original prototype of 7097 Trolls' Mountain Fortress
7099 Prototype 2.png|The second prototype of the set
=== City / Town ===
10184 Town Hall Proto.png|The first prototype version of 10184 Town Plan
10184 Town Hall Proto Back.png|Back view of the first prototype version
10184 Town Hall Proto 2.png|The second prototype version of 10184 Town Plan
10184 Town Hall Proto 2 Side.png|Side view of the second prototype version
Home_7893.jpg|Prototype of 7893 Passenger Plane
=== Classic Space ===
Remote Classic Space.png|A remote-controlled Classic Space vehicle prototype from 1985
=== Construction ===
7249 Prototype.jpg|A prototype of 7249 XXL Mobile Crane
=== Creator ===
Prototype10185GreenGrocer.jpg|10185 Green Grocer
=== CUUSOO ===
ProtoCUUSOO1.jpg|The initially submitted version of 21101 Hayabusa
ProtoMinecraft1.jpg
ProtoMinecraft2.jpg
ProtoMinecraft3.jpg|Prototype mobs
ProtoMinecraft4.jpg
=== Designer Sets ===
4402 Prototype.jpg|A prototype of 4402 Sea Riders
=== Disney Princess ===
41051 Merida's Highland Games.jpg|A prototype of 41051 Merida's Highland Games
=== Exo-Force ===
Source: 
8115-teal.jpg|The 8115 Dark Panther in the alternate teal colour
8115-red.jpg|The 8115 Dark Panther in the alternate red colour
8115-orange.jpg|The 8115 Dark Panther in the alternate orange colour
8118 Prototype.png|Prototype model 1 of 8118 Hybrid Rescue Tank
8118 Prototype Detach.png|Detached vehicle of prototype model 1
8118 Prototype 2.png|Prototype model 2 of 8118 Hybrid Rescue Tank
8118 Prototype 2 Detach.png|Detached vehicle of prototype model 2
8118 Prototype 3.png|Prototype model 3 of 8118 Hybrid Rescue Tank
== Friends ==
41314-Concept1.jpg|A prototype of 41314 Stephanie's House
41314-Concept2.jpg
=== Harry Potter ===
4766 Prototype.jpg|A prototype of 4766 Graveyard Duel
51T7RnYroEL. SL500 AA300 -1-.jpg
=== LEGO Games ===
Source: 
090712_lavadragon.jpg|The prototypes for 3838 Lava Dragon
=== Master Builder Academy ===
MBA prototypes.png|Prototypes of the models that can be built in 20200 Space Designer
MBA Rocket prototype.png|Prototype of the Rocket
MBA Rocket.png
MBA Rocket 2.png
MBA Rocket 3.png
MBA Rocket 4.png
Kit 2 3.png|The Airport prototype of the one that can be built in 20201 Microbuild Designer
Kit 2 4.png
Kit 2 5.png
Kit 2 6.png
Kit 2 7.png|The Racetrack prototype of the one that can be built in 20201 Microbuild Designer
Kit 2 8.png
Kit 2 9.png
Kit 2 10.png
Kit 2 11.png|The Shuttle Launch prototype of the one that can be built in 20201 Microbuild Designer
Kit 3 1.png|Prototypes of the models that can be built in 20202 Robot Designer
kit 3 2.png|Prototype of the Robo Walker
Kit 3 3.png|Prototype of the Plasma Mech
Kit 3 4.png|Prototype of X-91B
=== Mixels ===
LEGO Monsters 1.jpg|A prototype line-up of various Mixels. The theme was initially called "LEGO Monsters" during development, but was changed to Mixels in time for the final product release.
LEGO Monsters 2.jpg
LEGO Monsters 3.jpg
LEGO Monsters 4.jpg
MixelsProto.jpg
=== M-Tron ===
M-Tron_Prototype_Mecha.png|A prototype M-Tron scrapped by the LEGO Company
M-Tron Transforming.png|A prototype "transforming vehicle"
M-Tron Transforming1.png|The vehicle with cockpit lowered
M-Tron Crane.png|An M-Tron crane prototype
M-Tron Robot.png|Two M-Tron robot prototypes
M-Tron Walker.png|An M-Tron walker prototype
=== Nexo Knights ===
70315-Proto1.jpg|70315 Clay's Rumble Blade
70315-Proto2.jpg
70315-Proto3.jpg
70315-Proto4.jpg
70315-Proto5.jpg
=== Ninjago ===
NinjagoPrototype1.jpg|One of the first Airjitzu prototypes 
NinjagoPrototype2.jpg|Many Airjitzu prototypes
NinjagoPrototype3.jpg|Engineering of the Airjitzu 
=== Power Miners ===
Source: 
Crystal Sweeper prototype.jpg|Prototype of 8961 Crystal Sweeper
Undersea-Explorer-PM-Prototy.jpg|Power Miners prototype that became 8080 Undersea Explorer
=== Sea-Tron ===
Seatron Monorail.png|The Sea-Tron Monorail
=== Space (No Name) ===
Alien Proto.png|A prototype Alien set from 1988
=== Space Police III ===
SPIII Prototype I.jpg
SPIII Prototype I Back.jpg
SPIII Prototype II.jpg
Space Police III Prototype III.jpg
Space Police III Prototype III Back.jpg
5969_Prototype.jpg
5971_Prototype.jpg
5971_Prototype_Back.jpg
5983_Prototype.jpg|
5972_Prototype.jpg|Prototype of 5972 Space Truck Getaway
5973_Skull_Twin_Prototype.jpg|A prototype from the Skull Twins ship from the 5973 Hyperspeed Pursuit.
5973_Space_Police_Prototype.jpg
5973_Space_Police_Prototype_Back.jpg
5973_Prototype_Skull_Blue.jpg
5979_Prototype.gif|5979 Max Security Transport prototype
5981 Prototype.jpg|5981 Raid VPR prototype
5981 Prototype Back.jpg
UnusedSPIIIproto.jpg|Unused prototype of a police station
=== Spider-Man (Theme) ===
x225red.jpg|A red Green Goblin helmet
=== Star Wars ===
Starwars visual dictionary.jpg|Prototype book cover of 2853402 LEGO Star Wars: The Visual Dictionary
=== Super Heroes ===
quinjet-prototype-1.jpg
quinjet-prototype-2.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-3.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-4.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-5.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-6.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-7.jpg|Prototype for 6869 Quinjet Aerial Battle
quinjet-prototype-8.jpg|Prototype for 6869 Quinjet Aerial Battle
HulkBusterConceptArt.jpg|Prototype for 76031 Hulkbuster Smash
=== Vikings ===
7019 Prototype.jpg|A prototype of 7019 Viking Fortress against the Fafnir Dragon
== Prototype minifigures ==
=== Atlantis ===
Atlantis Prototype Shark.png|A prototype of the Shark Warrior
Atlantis Prototype Minifigure1.png
Atlantis Prototype Minifigure2.png|A prototype of the Squid Warrior
Atlantis Prototype Minifigure3.png
=== Alien Conquest ===
ACprotoaliens.jpg|Alien prototypes 
=== Castle (No Name) ===
Knights Protos.png|Some medieval character prototypes
Ghost red.jpg
=== Castle (2007) ===
Dwarf Protos.png|Prototype Dwarves minifigures
Dwarf Proto 1.png|Prototype Dwarf minifigure
Dwarf Proto 2.png|Prototype Dwarf minifigure
Giant Troll Proto.png|Prototype Giant Troll minifigure
=== Collectible Minifigures ===
MR. GOLD.jpg|Prototype Mr. Gold minifigure
Alien Trooper prototype.png|Prototype Alien Trooper minifigure
=== Exo-Force ===
<gallery>
8118 Mini Bot Prototype.png|Prototype bot model of 8118 Hybrid Rescue Tank
== Friends ==
File:StephaniePrototype.jpg|Prototype of Stephanie
File:HorsePrototype.jpg|Prototype of the Friends horses
=== LEGO Games ===
Source: 
090712_microfigs.jpg|The microfigure prototypes
=== LEGO Master Builder Academy ===
MBA Drawing 1.png
MBA Drawing 2.png
Jet Pack prototype.png
Kit 2 1.png
Kit 2 2.png
=== Minecraft ===
Creeppppp.jpg|A creeper prototype
Creper.jpg|A creeper prototype
Creepy.jpg|A creeper prototype
Creepero.jpg|A creeper prototype
Creeperooo.jpg|A creeper prototype
Creeppppy.jpg|A creeper prototype
=== Ninjago ===
Wyplash_prototype.png|A prototype of Wyplash
NINJAGO PROTOS.jpg|Prototypes of Ninjago sets
=== Pirates of the Caribbean ===
LEGO POTC.jpg|A prototype of Jack Sparrow with dark brown dreadlocks
=== Power Miners ===
Original Rock Monster Sketch.png|Sketch of early Rock Monster
Original Rock Monster Sketch 2.png|Another sketch of an early Rock Monster
Power miners prototypes.jpg|Rock Monster prototypes
Rock Proto Mini.png|The original prototype for the mini Rock Monsters
Rock Mini Final.png|Final Rock Monster model
Midi Monster Proto.png|A prototype of the Tremorox Rock Monsters
Lava Monster 1 no print.jpg|Prototype minifigure of a Lava Monster
Eruptorr Proto.png|First prototype of Eruptorr
Eruptorr Proto 2.png|Second prototype of Eruptorr
Original Power Miners.png|Original Power Miner minifigure (left), Power Miner in different colours (middle) and final Power Miner minifigure
=== Sea-Tron ===
Seatron Alien.png|Sea-Tron Alien
Y_minifig_seatron_aquanaut_1.jpg|Sea-Tron Astronaut
=== Space Police III ===
Alien Sketches.png|Preliminary sketches of possible Space Police III aliens Some resemble real aliens. Row 1, starting from second: Frenzy, Krannx, Skull Twin, Squidman
=== Super Heroes ===
WWProto1.jpg|Wonder Woman
WWProto2.jpg
UltronConceptArt.jpg|Ultron
=== Star Wars ===
Zm.png|Prototype of Queen Amidala
prototype queen amidarla.png|Prototype of Queen Amidala
ProtoVader.jpg|Prototype of Darth Vader
=== Studios ===
Vampire Prototype.gif|A prototype sketch of the Vampire
Werewolf Prototype.gif|A prototype sketch of the Werewolf
FrankensteinMonster.gif|A prototype sketch of Frankenstein's Monster
=== The Lord of the Rings ===
Cave troll prototype.png
=== Vikings ===
Vikings Prototype.gif|Prototype Sketches of Vikings minifigures
Vikings Prototype Torsos.gif|Prototype sketches of Viking Torsos
== Prototype theme images ==
=== Alien Conquest ===
ACprotoart1.jpg|Prototype image of Alien Conquest
ACproroart2.jpg|Prototype image of Alien Conquest
ACconcept.jpg|Concepts for Alien Conquest
=== BIONICLE ===
2004biop.jpg|Prototype image of BIONICLE 2004
=== Blacktron ===
Blacktron Theme Proto.png|A prototype image of the Blacktron theme from 1985
=== Europa ===
Europa.png|Prototype image of the unreleased Europa theme
=== M-Tron ===
M-Tron Prototype Colors.png|A prototype image of M-Tron
=== Sea-Tron ===
Seatron.png|A variety of the unreleased Sea-Tron prototypes
=== Space (no-name) ===
Space Proto.png|A prototype Space theme idea from 1989
Space Proto2.png|Another prototype Space theme idea from 1989, apparently some sort of space station
=== Space Police I ===
Space Police I Theme Proto.png|A prototype of the original Space Police theme from 1986
=== CYBOTS ===
CYBOT1.jpg|A design of a CYBOT
CYBOT2.jpg|Another design for a CYBOT
== Unreleased Sets ==
=== Castle (2007) ===
* 5372 Skeleton Chariot
== Unreleased Themes ==
* Seatron
* Europa
* CYBOTS
== References ==
*