Unreleased toy
For every Transformer that makes it to store shelves, there are always some that fall by the way. Lines get canceled, retailers back off on exclusives, designs go over budget, focus groups pass on a concept, or maybe they just weren't cool enough. Regardless of the whys and wherefores, this article aims to document the unreleased toys that never quite saw retail.
Note that this list will likely never be "complete," as for every concept design that makes it into collectors' hands, a countless number wind up in the garbage can.
(Quick! Get to the landfill outside Providence and START DIGGING.)
Generation One
Concepts
These never made it past the drawing board.

Prototypes
These never made it past prototype stage.
- A Diaclone Triplechanger (whose design was later used for Dropshot).
G1.5
(This section is about the line between the US G1 and G2.)
Concepts
These never made it past the drawing board.

- Buffalo Dump
Prototypes
These never made it past prototype stage.
Generation 2
Concepts
These never made it past the drawing board.
Prototypes
These never made it past prototype stage.
- General Optimus Prime
Beast Wars
Concepts
These never made it past the drawing board.
Prototypes
These never made it past prototype stage.
- Beast Wars Halloween Blackaracnia and Waspinator set
- Beast Wars Halloween Cheetor and


