Transformers Alternate Names: Trademark Name Changes and Preliminary Names

GENERATION ONE

G1 1984
Bluestreak
   Name changes: Silverstreak (Commemorative Series, Alternators, Universe)
Bumblebee
   Preliminary names: Goldbug
Cliffjumper
   Preliminary names: Blow-Out
Jazz
   Name changes: Meister (Alternators)
Ravage
   Preliminary names: Stalker
Reflector
   Name changes: Refraktor (Siege)
Starscream
   Preliminary names: Ulchtar
Sunstreaker
   Preliminary names: Spinout
Trailbreaker
   Preliminary names: Guzzle
   Name changes: Trailcutter (TF 2010, Prime, Kre-O, Thrilling 30); Trailblazer (IDW Infestation 2)
Windcharger
   Preliminary names: Sprint
G1 1985
Blaster
   Preliminary names: Blastbox, Pulse
Bombshell
   Name changes: Hardshell (Universe, Kre-O)
Cosmos
   Preliminary names: Spaceracer, Spaceshot, Shooting Star
Firestar
   Name changes: Novastar (POTP)
Grimlock
   Preliminary names: Jawbreaker, Trapjaw, Tyrannobot, Tyrex
   Names changes: Clobber (Titans Return)
Hoist
   Preliminary names: Winch
Jetfire / Skyfire
   Preliminary names: Fireball
   Name changes: Jetwash (Kre-O)
Scavenger
   Preliminary names: Scrounge
   Name changes: Skavenger (BWU)
Scrapper
   Preliminary names: Gravedigger
Shockwave
   Preliminary names: Flash Beam
   Name changes: Shockblast (Alternators)
Shrapnel
   Name changes: Sharpshot (Universe); Skrapnel (Thrilling 30, Kre-O)
Slag
   Preliminary names: Tricerabot
   Name changes: Snarl (Robot Heroes); Slug (AOE, Kre-O, POTP)
Sludge
   Preliminary names: Brontobot, Bronton, Piledrive
   Name changes: Slog (AOE)
Snarl
   Preliminary names: Stegobot
Swoop
   Preliminary names: Divebomb, Wing
   Name changes: Strafe (AOE); Ptero (Titans Return)
Warpath
   Preliminary names: Hot Shot
G1 1986
Fireflight
   Name changes: Firestrike (Bot Shots, Kre-O); Firefly (Combiner Wars)
Groove
   Preliminary names: Cruiser
Headstrong
   Name changes: Headlock (Kre-O)
Hot Spot
   Name changes: Hot Zone (Universe)
Motormaster
   Name changes: Motorbreath (Generations, Bot Shots, Kre-O)
Octane
   Name changes: Tankor (Universe); Fuselage (Kre-O); Octone (Titans Return)
Outback
   Name changes: Fallback (Timelines, TF 2010)
Runabout
   Name changes: Over-Run (Timelines)
Runamuck
   Name changes: Runamok (Siege)
Slingshot
   Name changes: Quickslinger (Bot Shots, Kre-O, Combiner Wars)
Straxus
   Name changes: Darkmount (Generations)
Streetwise
   Name changes: Streetstar (Timelines); Streetsmart (Bot Shots, Kre-O, TF 2014)
Tantrum
   Name changes: Torox (Kre-O, POTP)
Wildrider
   Name changes: Brake-Neck (Bot Shots, Kre-O, Combiner Wars)
Wipe-Out
   Name changes: Necro (Titans Return)
G1 1987
Afterburner
   Name changes: Afterburst (Kre-O); Afterbreaker (Timelines, Combiner Wars)
Blot
   Name changes: Blight (Prime)
Brainstorm
   Name changes: Charon (Titans Return)
Chase
   Name changes: Roadburn (Titans Return)
Cutthroat
   Name changes: Windrazor (Prime, Kre-O)
Doublecross
   Name changes: Twinferno (Titans Return)
Fastlane
   Name changes: Fastclash (Titans Return)
Firebolt
   Name changes: Offshoot (TF 2010); Firedrive (Titans Return, Siege)
Flywheels
   Name changes: Skytread (Titans Return, Siege)
Goldbug
   Name changes: Goldfire (Thrilling 30)
Haywire
   Name changes: Hyperfire (Titans Return)
Lightspeed
   Name changes: Lightstorm (Kre-O); Lightsteed (Combiner Wars)
Mindwipe
   Name changes: Mindswipe (Kre-O)
Overkill
   Preliminary names: Gouge
   Name changes: Overboard (Titans Return)
Sinnertwin
   Name changes: Twinstrike (Prime)
Skullcruncher
   Name changes: Skullsmasher (Titans Return)
Slugfest
   Preliminary names: Crunchback
Weirdwolf
   Name changes: Wolfwire (Titans Return)
The Headmasters
Lione
   Name changes: Sawback (Titans Return)
G1 1988
Darkwing
   Name changes: Darkwind (Universe); Blackwing (POTP)
Getaway
   Name changes: Breakaway (TF 2007, Titans Return)
Guzzle
   Name changes: Fuel Line (Kre-O)
Hairsplitter
   Name changes: Shrute (Timelines, Siege)
Horri-Bull
   Name changes: Terri-Bull (Titans Return)
Iguanus
   Preliminary names: Snakeskin

Overbite

   Alternate names: Jawbreaker
Ruckus
   Name changes: Grabuge (Timelines)
Siren
   Name changes: Loudmouth (Titans Return)
Squeezeplay
   Name changes: Crashbash (Titans Return)
Tracer
   Name changes: Caliburst (Thrilling 30)
Zigzag
   Name changes: Zputty (Timelines)
Super-God Masterforce
Overlord
   Name changes: Gigatron (HOC)
G1 1989
Big Shot
   Name changes: Topshot (WFC: Siege)
Ironworks
   Name changes: Irontread (WFC: Siege)
Red Hot
   Name changes: Red Heat (WFC: Siege)
Skyhopper
   Name changes: Slyhopper (WFC: Siege)
Whisper
   Name changes: Visper (WFC: Siege)

Victory
Black Shadow
   Name changes: Sky Shadow (Generations, Titans Return)
Hellbat
   Name changes: Fellbat (Combiner Wars)
Jallguar
   Name changes: Jarugar (Kre-O)
Killbison
   Name changes: Ironbison (Combiner Wars)
G1 1990
Big Daddy
   Name changes: Daddy-O (Earthrise)
Blast Master
   Name changes: Payload (Thrilling 30)
Eagle Eye
   Name changes: Eclipse (Thrilling 30)
Kick-Off
   Name changes: Kick-Over (Timelines)
Neutro
   Name changes: Groundbuster (Thrilling 30)

Phaser

   Name changes: Fuzer (WFC: Earthrise)
Sky High
   Name changes: Flanker (Thrilling 30)
Skyfall
   Preliminary names: Fireball
Zone
Gunlift
   Name changes: Fireline (WFC: Siege)
Powerbomb
   Name changes: Cratermaker (WFC: Siege)
G1 1991
Slicer
   Name changes: Slice (Timelines)
G1 1992
Scorch
   Name changes: Turbomaster (Timelines); Singe (Kre-O)
G1 1993

Clench

   Alternate names: Colossus

Pyro

   Alternate names: Spark

Generation 2
Crash Test

    Preliminary names: Oil Slick

Electro
   Name changes: Electrons (Timelines)
Skyjack
   Name changes: Skyfall (Universe)
G1 2008
Acid Storm
   Preliminary names: Acid Rain, Rainmaker
   Name changes: Acid Wing (Kre-O)

G1 2020

Doublecrosser

    Preliminary names: Crossguard

BEAST ERA

Beast Wars

Injector

   Preliminary names: Aquasting

Jawbreaker

   Preliminary names: Cackle

Jetstorm

   Preliminary names: Dragonfire

Poison Bite

   Preliminary names: Scorpinox

Windrazor

   Preliminary names: Soulstice

Beast Machines

Blastcharge

   Preliminary names: Blastrax

Botanica

   Preliminary names: Binary

Buzzsaw

   Preliminary names: Mudobber, Sting

Dillo

   Preliminary names: Trench

Geckobot

   Preliminary names: Kamilion

Jetstorm

   Preliminary names: Skybolt

Longhorn

   Preliminary names: Rumble

Mirage

   Preliminary names: Burnout, Insector, Skidmark

Mol

   Preliminary names: Burro

Obsidian

   Preliminary names: Blitzwing

Quickstrike

   Preliminary names: Wolfgang

Rav

   Preliminary names: Chro

Scavenger

   Preliminary names: Destructicon

Snarl

   Preliminary names: Ravage

Spy Streak

   Preliminary names: Attack Bird

RID 2001

RID 2001

Bruticus

   Preliminary names: Cerberus

UNICRON TRILOGY

Armada
Energon
Blackout

    Preliminary names: Raptor

Blight
   Preliminary names: Scattorshot
Six Shot
   Preliminary names: Scattorshot
Wing Saber
   Preliminary names: Superion Maximus
Cybertron

Anti-Blaze

   Preliminary names: Bonfire

Leobreaker

   Preliminary names: Overcast

Overhaul

   Preliminary names: Trailbreaker

Scythe

   Preliminary names: Scimitar
Wing Saber
   Preliminary names: Knockdown

MOVIES

TF 2007

Blackout
   Preliminary names: Soundwave; Grimlock; Vortex; Devastator; Incinerator
Fracture

   Preliminary names: Crasher; Catalyst
Mixmaster
   Preliminary names: Buckethead, Quickmix, Takedown

Mudflap

   Preliminary names: Sawtooth
Scrapper
   Preliminary names: Erector, Grapple, Hoist
Wreckage
   Preliminary names: Stryker
   Name changes: Reckage (BWU)
DOTM
Crankcase
   Preliminary names: Dreadwind
Crowbar
   Preliminary names: Hooligan
Hatchet
   Preliminary names: Dirtbag
Igor
   Preliminary names: Undermine
Leadfoot
   Preliminary names: Flash
Mirage / Dino
   Preliminary names: Enzo, Rush
Roadbuster
   Preliminary names: Warpath
Topspin
   Preliminary names: Tempest, Warpath
AOE
Crosshairs
   Preliminary names: Slingshot
TLK
Dreadbot
   Preliminary names: Hooligan
Hot Rod
   Preliminary names: Side Kick
Bumblebee
Shatter
   Preliminary names: Fracture

ALIGNED

RID 2015

Crustacion

   Preliminary names: Prong

Fixit

   Preliminary names: Tuneup
Nightra
   Preliminary names: Chicane

Sawback

   Preliminary names: Wolfwire

Sideswipe

   Preliminary names: Fastlane
Stormshot
   Preliminary names: Skyfire

Generation One
   Ginrai -- Magnus Prime
---
Preliminary Names

The Headmasters (1987)

   Trainbots
   Getsuei -- Night
   Kaen -- Power
   Seizan -- Plain
   Shouki -- Mach
   Suiken -- Storm
   Yukikaze -- Snow
   Raiden -- Grandliner
Return of Convoy (1991)
   Grandus -- Iron Baron
Generation 2 (1993)
   Terradive -- Terraswoop

Robots in Disguise (2001)
   Crosswise -- X-Tech
   Slapper -- Wartoad
   X-Brawn -- Strongarm
Armada (2002)
   Demolishor -- Scourge
   Hot Shot -- Bumblebee
Expanded Universe (2002)
   CatSCAN -- Lifeline
   Glyph -- Archaix
Collector's Edition (2003)
   Sunstorm -- Flareburst, Flarestorm
Universe (2003)
   Caliburn -- Destructicon, Vanquish
   Megazarak -- Chaos Megatron
   Sentinel Maximus -- Vector Prime
   Shadow Striker -- Silhouette

Cybertron (2005)

   Crosswise -- Smokescreen
   Override GTS -- Double Clutch
   Quickmix -- Mix Master
Timelines (2005)

   Lift-Ticket -- Salvage
   Nexus Maximus -- Prime Nexus, Maximus Prime
   Skyklik -- Cloudwise, Popcopter
   Thunder Mayhem -- Mayhem Maximus
Classics (2006)
   Dirt Rocket -- Offshoot
   Thunderwing -- Nightscream

Revenge of the Fallen (2009)

   Demolishor -- Wheelbot

   Rampage -- Skipjack

Power Core Combiners (2010)
   Chopster -- Kick-Axe
Prime (2011)
   Skystalker -- Stomrazor
   Vertebreak -- Scourge
Dark of the Moon (2011)
   [Note: Some of these were likely made to hide certain characters identities]
   Darksteel -- Dark Iron
   Megatron -- Cyclonus
   Sentinel Prime -- Ultra Magnus
   Shockwave -- Blitzwing
   Soundwave -- Breakdown
   Wheeljack / Que -- Steeljaw

Combiner Wars (2015)
   Dust Up -- Crash Test
   Sky Reign -- Lynx King

Kre-O
   Grimstone -- n/a
      Iquanox -- Fracture
   Lazerbolt -- Icebolt
      Bullhorn -- Bullgurr
      Floodgate -- Coldsnap
      Freezeout -- Gearhead
      Roadhound -- Undertow
   Obsidian -- Firewing
      Bullwark -- Blacktop
      Hemocron -- Piledriver
   Volcanicon
      Liftoff -- Farside
      Power Surge -- Overload