Smallest Transforming Transformers

Smallest Transformers (gokushou henkei toransufoomaa), erroneously called "World's Smallest Transformers" or "WSTFs" by fans, was a line created by Takara in 2003. It consisted of Generation 1 characters in the smallest form possible. The figures were blindpacked.

Wave 1

• Bumblebee
• Optimus Prime
• Sideswipe
• Soundwave w/ Ravage
• Starscream

There were two chase figures in the first assortment:

• Bumblebee (red)
• Skywarp

And one shortpacked figure:

• Optimus Prime's trailer

Wave 2

• Megatron
• Optimus Prime ("anime" colors)
• Prowl
• Red Alert
• Thrust

There were two chase figures in the second assortment:

• White Optimus Prime (aka Ultra Magnus)
• Bluestreak

And one shortpacked figure:

• Jazz

Wave 2.5

Wave 2.5 was only available in certain retail stores in limited quantities. It included:

• Jazz
• Megatron
• Optimus Prime ("anime" colors)
• Soundwave w/ Ravage
• Starscream

There were two chase figures in the exclusive assortment:

• Thundercracker
• Optimus Prime's trailer ("anime" version)

And one shortpacked figure:

• Hot Rod

Unreleased and Miscellaneous

• Trade show images originally suggested a third wave of Smallest Transformers, which would have added the then-unreleased Hot Rod, as well as still-unreleased versions of Skids, Tracks, and Megatron's stock and silencer accessories.
• Justitoys, a Hong Kong company, produced similarly-scaled versions of the Dinobots after the official line concluded. These are entirely unofficial, and Justitoys had to alter the line's packaging and branding to avoid using Transformer branding ("Dinobots" became "Dinorobots," "Grimlock" became "Commander," etc.)
  
  
  From Teletraan I: The Transformers Wiki, a Wikia wiki.