Smallest Transforming Transformers

Smallest Transforming Transformers (極小変形 トランスフォーマー "Kyokushō Henkei Transformers"), 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 transformable 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

• Hot Rod was later re-released as a Toys'R'Us exclusive with purchases of THS-02 Convoy.
• Trade show images originally suggested a third wave of Smallest Transforming 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. Skids and Tracks were reportedly unproduced for cost reasons.
• Only the items listed here are official Smallest Transforming Transformers toys. Multiple fan-groups have produced similar-scaled items based on old Transformers toys, but they are all unlicensed, unofficial product.