To celebrate the 20th Anniversary of The Transformers, Hasbro launched the Transformers Energon line of toys in January 2004, with the first wave slipping out a month earlier.
The UK and most of Europe had to wait until 5/6 months later before Hasbro got around to releasing them.
Basic
Arcee
Battle Ravage
Blackout (D3)
Blight (D2)
Bonecrusher (C4)
Command Ravage
Cruellock
Divebomb
Doom-Lock
Duststorm (C2)
Energon Saber (Skyboom, Wreckage & Scattor)
Energon Strongarm
Insecticon
Kickback (D4)
Offshoot
Perceptor (High Wire, Sureshock & Grindor)
Signal Flare
Sky Shadow (A2)
Skyblast
Sledge (C1)
Stormcloud (D1)
Strongarm
Terradive (A3)
Treadshot (A1)
Wideload (C3)
Windrazor (A4)
Deluxe
Barricade
Demolishor
Downshift
Energon Hot Shot
Energon Kicker And High Wire
Energon Starscream
Hot Shot
Inferno
Prowl
Rapid Run with Nightscream And Nightcruz
Roadblock
Rodimus
Sharkticon
Slugslinger
Snow Cat
Starscream
Steamhammer
Storm Jet
Tow-Line
Mega
Alpha-Quintesson
Beachcomber
Cliffjumper
Dreadwing
Energon Ironhide
Grimlock & Swoop
Ironhide
Jetfire
Mirage
Overcast
Shockblast
Six Shot
Treadbolt With Mini-Con Rollbar
Wing Saber
Ultra
Bulkhead
Landmine
Landquake
Quickstrike
Scorponok
Tidal Wave with Ramjet
Ultra Magnus with Knock Out and Space Mini-Con Team (Astroscope, Payload & Sky Blast)
Super
Galvatron
Megatron
Optimus Prime
Supreme
Omega Sentinel
Omega Supreme
Unicron with Dead End
Unicron with Dead End (Armada/Orange Unicron In Energon Packaging)
Role-Play
Megatron Energon Sword
Optimus Prime Energon Blaster
Store Exclusives
Costco: Optimus Prime & Overload Value Pack
KB Toys: Demolishor & Cyclonus Value Pack
KB Toys: Cyclonus with Crumplezone Mini-Con
KB Toys: Demolishor with Blackout Mini-Con
KMart: Autobots S.W.A.T. Team (Prowl & Checkpoint)
Sam’s Club: Prowl and Starscream Value Pack
Target: Dreadwind and Smokejumper Pack
Toys R Us: Megatron and Optimus Prime Value Pack
Toys R Us: Spacewarp with Commetor & 4 Space Team Mini-Cons [Armada]
Toys R Us: Energon Ultra Skywarp with 4 Mini-Cons
